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vm-sol11_sparc-Patch-6.1.1.400
Obsolete
The latest patch(es) : sfha-sol11_sparc-Patch-6.1.1.100 
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 Basic information
Release type: Patch
Release date: 2016-04-21
OS update support: None
Technote: None
Documentation: None
Popularity: 620 viewed    32 downloaded
Download size: 54.6 MB
Checksum: 2163107797

 Applies to one or more of the following products:
Dynamic Multi-Pathing 6.1 On Solaris 11 SPARC
Storage Foundation 6.1 On Solaris 11 SPARC
Storage Foundation Cluster File System 6.1 On Solaris 11 SPARC
Storage Foundation for Oracle RAC 6.1 On Solaris 11 SPARC
Storage Foundation HA 6.1 On Solaris 11 SPARC
Volume Manager 6.1 On Solaris 11 SPARC

 Obsolete patches, incompatibilities, superseded patches, or other requirements:

This patch is obsolete. It is superseded by: Release date
sfha-sol11_sparc-Patch-6.1.1.100 2016-08-02

This patch requires: Release date
sfha-sol11_sparc-6.1.1 2014-07-24

 Fixes the following incidents:
3372831, 3424815, 3440232, 3440980, 3444900, 3445233, 3445234, 3445249, 3445268, 3445991, 3445992, 3446010, 3446126, 3447306, 3447894, 3449714, 3452709, 3452727, 3452811, 3455455, 3455533, 3456729, 3457363, 3458036, 3458799, 3470255, 3470257, 3470260, 3470262, 3470265, 3470270, 3470272, 3470274, 3470275, 3470279, 3470282, 3470287, 3470290, 3470300, 3470301, 3470303, 3470322, 3470345, 3470346, 3470347, 3470350, 3470352, 3470353, 3470354, 3470382, 3470383, 3470384, 3470385, 3475525, 3490147, 3498923, 3506675, 3506676, 3506679, 3506707, 3506709, 3531906, 3536289, 3540122, 3543944, 3547093, 3607232, 3640641, 3644360, 3674567, 3682022, 3690253, 3729172, 3736352, 3771073, 3778391, 3808593, 3812272, 3835566, 3852147, 3852455, 3852800, 3853086, 3854390, 3854526, 3856384, 3857121, 3864112, 3864625, 3864627, 3864628, 3864980, 3864983, 3864986, 3864987, 3864988, 3864989, 3865415, 3865631, 3865633, 3865638, 3865640, 3865645, 3865646, 3865649, 3865653, 3866241, 3866269, 3866593, 3866624, 3866643, 3866651, 3866679, 3867134, 3867135, 3867137, 3867308, 3867315, 3867357, 3867706, 3867708, 3867709, 3867710, 3867711, 3867712, 3867714, 3867881, 3867928, 3869659, 3870440, 3874736, 3874961, 3875230, 3875564

 Patch ID:
VRTSvxvm-6.1.1.400

 Readme file  [Save As...]
                          * * * READ ME * * *
               * * * Symantec Volume Manager 6.1.1 * * *
                      * * * Patch 6.1.1.400 * * *
                         Patch Date: 2016-04-21


This document provides the following information:

   * PATCH NAME
   * OPERATING SYSTEMS SUPPORTED BY THE PATCH
   * PACKAGES AFFECTED BY THE PATCH
   * BASE PRODUCT VERSIONS FOR THE PATCH
   * SUMMARY OF INCIDENTS FIXED BY THE PATCH
   * DETAILS OF INCIDENTS FIXED BY THE PATCH
   * INSTALLATION PRE-REQUISITES
   * INSTALLING THE PATCH
   * REMOVING THE PATCH


PATCH NAME
----------
Symantec Volume Manager 6.1.1 Patch 6.1.1.400


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
Solaris 11 SPARC


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSvxvm


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Symantec Dynamic Multi-Pathing 6.1
   * Symantec Storage Foundation 6.1
   * Symantec Storage Foundation Cluster File System HA 6.1
   * Symantec Storage Foundation for Oracle RAC 6.1
   * Symantec Storage Foundation HA 6.1
   * Symantec Volume Manager 6.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: 6.1.1.400
* 3607232 (3596330) 'vxsnap refresh' operation fails with `Transaction aborted waiting for IO 
drain` error
* 3640641 (3622068) After mirroring encapsulated root disk, rootdg fails to import if any disk in 
the disk group becomes unavailable.
* 3644360 (3644291) Some of the disk groups that are composed by 2TB LUNs fail to be auto-imported after a system restart.
* 3674567 (3636089) VVR(Veritas Volume Replicator) secondary was panicked due to a bad mutex 
produced by vxconfigd while committing the transactions.
* 3682022 (3648719) The server panics while adding or removing LUNs or HBAs.
* 3690253 (3606480) Enabling dmp_native_support fails since the devid and phys_path are not 
populated.
* 3729172 (3726110) On systems with high number of CPUs, Dynamic Multi-Pathing (DMP) devices may perform considerably slower than OS device paths.
* 3736352 (3729078) VVR(Veritas Volume Replication) secondary site panic occurs during patch 
installation because of flag overlap issue.
* 3771073 (3755209) The Veritas Dynamic Multi-pathing(VxDMP) device configured in Solaris Logical 
DOMains(LDOM) guest is disabled when an active controller of an ALUA array is 
failed.
* 3778391 (3565212) IO failure is seen during controller giveback operations 
on Netapp Arrays in ALUA mode.
* 3808593 (3795788) Performance degrades when many application sessions open the same data file on the VxVMvolume.
* 3812272 (3811946) When invoking "vxsnap make" command with cachesize option to create space optimized snapshot, the command succeeds but a plex I/O error message is displayed in syslog.
* 3835566 (3804214) VxDMP (Dynamic Multi-Pathing) path enable operation fails after the disk label is
changed from guest LDOM. Open fails with error 5 on the path being enabled.
* 3852147 (3852146) Shared DiskGroup(DG) fails to import when "-c" and "-o noreonline" options 
are
specified together
* 3852455 (3603792) The first boot after live upgrade to new version of Solaris 11 and VxVM 
(Veritas Volume Manager) takes long time.
* 3852800 (3819670) When smartmove with 'vxevac' command is run in background by hitting 'ctlr-z' key and 'bg' command, the execution of 'vxevac' is terminated abruptly.
* 3853086 (3783356) After Dynamic Multi-Pathing (DMP) module fails to load, dmp_idle_vector is not NULL.
* 3854390 (3853049) The display of stats delayed beyond the set interval for vxstat and multiple 
sessions of vxstat impacted the IO performance.
* 3854526 (3544020) Volume Manager (VxVM) tunables are getting reset to default after patch upgrade.
* 3856384 (3525490) System panic occurs when partial data received by VVR for incorrect type casting.
* 3857121 (3857120) Oracle database process hangs when being stopped.
* 3864112 (3860503) Poor performance of vxassist mirroring is observed on some high end servers.
* 3864625 (3599977) During a replica connection, referencing a port that is already deleted in another thread causes a system panic.
* 3864627 (3677359) VxDMP (Veritas Dynamic MultiPathing) causes system panic after a shutdown or reboot.
* 3864628 (3686698) vxconfigd was getting hung due to deadlock between two threads
* 3864980 (3594158) The spinlock and unspinlock are referenced to different objects when interleaving with a kernel transaction.
* 3864983 (3614182) First system reboot after migration from Solaris Multi-Pathing (MPXIO) to
Symantec Dynamic Multi-Pathing (DMP) native takes extremely long time.
* 3864986 (3621232) The vradmin ibc command cannot be started or executed on Veritas Volume Replicators (VVR) secondary node.
* 3864987 (3513392) Reference to replication port that is already deleted caused panic.
* 3864988 (3625890) vxdisk resize operation on CDS disks fails with an error message of "Invalid
attribute specification"
* 3864989 (3521726) System panicked for double freeing IOHINT.
* 3865415 (3736502) Memory leakage is found when transaction aborts.
* 3865631 (3564260) VVR commands are unresponsive when replication is paused and resumed in a loop.
* 3865633 (3721565) vxconfigd hang is seen.
* 3865638 (3727939) Data corruption may occur due to stale device entries in the /dev/vx/[r]dmp directories.
* 3865640 (3749557) System hangs because of high memory usage by vxvm.
* 3865645 (3841242) Use of deprecated APIs provided by Oracle, may result in a 
system hang.
* 3865646 (3628743) New BE takes too much time to startup during live upgrade on Solaris 11.2
* 3865649 (3848351) vxglm fails to stop as the vxglm driver could not be unloaded
* 3865653 (3795739) In a split brain scenario, cluster formation takes very long time.
* 3866241 (3790136) File system hang observed due to IO's in Ditry Region Logging (DRL).
* 3866269 (3736156) Solaris 11 update 1 system fails to come up after enabling dmp_native_support and reboot.
* 3866593 (3861544) For EFI disks, in some cases DMP disables the disks for I/Os when one of its
controller(switch) fails.
* 3866624 (3769927) "vxdmpadm settune dmp_native_support=off" command fails on Solaris.
* 3866643 (3539548) After adding removed MPIO disk back, 'vxdisk list' or 'vxdmpadm listctlr all' 
commands may show duplicate entry for DMP node with error state.
* 3866651 (3596282) Snap operations fail with error "Failed to allocate a new map due to no free 
map available in DCO".
* 3866679 (3856146) The Solaris sparc 11.2 latest SRUs and Solaris sparc 11.3 System  panics during 
reboot and fails to come up, after turning off the dmp_native_support.
* 3867134 (3486861) Primary node panics when storage is removed while replication is going on with heavy 
IOs.
* 3867135 (3658079) If the size of backup slice of volumes is larger than 64GB, Veritas Volume manager (VxVM) wraps it around it and 
exports it to LDOM (Logical Domains) guest domain.
* 3867137 (3674614) Restarting the vxconfigd(1M) daemon on the slave (joiner) node during node-join
operation may cause the vxconfigd(1M) daemon to become unresponsive on the
master and the joiner node.
* 3867308 (3442024) The vxdiskadm(1M) option #1(adding disk to disk group and initialization) does not support Extensible Firmware Interface(EFI) disks on Solaris operating system.
* 3867315 (3672759) The vxconfigd(1M) daemon may core dump when DMP database is corrupted.
* 3867357 (3544980) Vxconfigd reports error message like "vxconfigd V-5-1-7920 di_init() failed" after 
SAN tape online event.
* 3867706 (3645370) vxevac command fails to evacuate disks with Dirty Region Log(DRL) plexes.
* 3867708 (3495548) The vxdisk rm command fails with devices when Operating System Naming (OSN) scheme is used for devices controlled by the EMC Powerpath.
* 3867709 (3767531) In Layered volume layout with FSS configuration, when few 
of the FSS_Hosts are rebooted, Full resync is happening for non-affected disks 
on master.
* 3867710 (3788644) Reuse raw device number when checking for available raw devices.
* 3867711 (3802750) VxVM (Veritas Volume Manager) volume I/O-shipping functionality is not disabled even after the user issues the correct command to disable it.
* 3867712 (3807879) User data corrupts because of the writing of the backup EFT GPT disk label 
during the VxVM disk-group flush operation.
* 3867714 (3819832) No syslog message seen when dmp detects controller 
disabled/enabled
* 3867881 (3867145) When VVR SRL occupation > 90%, then output the SRL occupation is shown by 10 
percent.
* 3867928 (3764326) VxDMP(Veritas Dynamic Multi-Pathing) repeatedly reports "failed to get devid".
* 3869659 (3868444) Disk header timestamp is updated even if the disk group(DG) import fails.
* 3870440 (3873489) pkgchk failing with patch on solaris 10.
* 3874736 (3874387) Disk header information is not logged to the syslog 
sometimes even if the disk is missing and dg import fails.
* 3874961 (3871750) In parallel VxVM vxstat commands report abnormal disk IO statistic data
* 3875230 (3554608) Mirroring a volume on 6.1 creates a larger plex than the original.
* 3875564 (3875563) While dumping the disk header information, human readable
timestamp was not converted correctly from corresponding epoch time.
Patch ID: 6.1.1.000
* 3372831 (2573229) On RHEL6, the server panics when Dynamic Multi-Pathing (DMP) executes 
PERSISTENT RESERVE IN command with REPORT CAPABILITIES service action on 
powerpath controlled device.
* 3440232 (3408320) Thin reclamation fails for EMC 5875 arrays.
* 3455533 (3524376) Removed Patch ID from the VxVM Solaris 10 patch PSTAMP.
* 3457363 (3462171) When SCSI-3 persistent reservation command 'ioctls' are
issued on non-SCSI devices, dmpnode gets disabled.
* 3470255 (2847520) The resize operation on a shared linked-volume can cause data corruption on the target volume.
* 3470257 (3372724) When the user installs VxVM, the system panics with a warning.
* 3470260 (3415188) I/O hangs during replication in Veritas Volume Replicator (VVR).
* 3470262 (3077582) A Veritas Volume Manager (VxVM) volume may become inaccessible causing the read/write operations to fail.
* 3470265 (3326964) VxVM hangs in Clustered Volume Manager (CVM) environments in the presence of FMR operations.
* 3470270 (3403390) After a crash, the linked-to volume goes into NEEDSYNC state.
* 3470272 (3385753) Replication to the Disaster Recovery (DR) site hangs even
though Replication links (Rlinks) are in the connected state.
* 3470274 (3373208) DMP wrongly sends the SCSI PR OUT command with APTPL bit value as A0A to arrays.
* 3470275 (3417044) System becomes unresponsive while creating a VVR TCP 
connection.
* 3470279 (3300418) VxVM volume operations on shared volumes cause unnecessary read I/Os.
* 3470282 (3374200) A system panic or exceptional IO delays are observed while executing snapshot operations, such as, refresh.
* 3470287 (3271315) The vxdiskunsetup command with the shred option fails to shred sliced or simple disks on Solaris X86 platform.
* 3470290 (2999871) The vxinstall(1M) command gets into a hung state when it is
invoked through Secure Shell (SSH) remote execution.
* 3470300 (3340923) For Asymmetric Logical Unit Access (ALUA) array type Logical Unit Numbers (LUN), Dynamic Multi-Pathing (DMP) disables and enables the unavailable asymmetric access state paths on I/O load.
* 3470301 (2812161) In a Veritas Volume Replicator (VVR) environment, after the Rlink is detached, 
the vxconfigd(1M) daemon on the secondary host may  hang.
* 3470303 (3314647) The vxcdsconvert(1M)command fails with error: Plex column offset is not strictly increasing for column/plex.
* 3470322 (3399323) The reconfiguration of Dynamic Multipathing (DMP) database fails.
* 3470345 (3281004) For DMP minimum queue I/O policy with large number of CPUs a couple of issues 
are observed.
* 3470347 (3444765) In Cluster Volume Manager (CVM), shared volume recovery may take long time for large configurations.
* 3470350 (3437852) The system panics when Symantec Replicator Option goes to
PASSTHRU mode.
* 3470352 (3450758) The slave node was not able to join CVM cluster and resulted in panic.
* 3470353 (3236772) Heavy I/O loads on primary sites result in
transaction/session timeouts between the primary and secondary sites.
* 3470354 (3446415) A pool may get added to the file system when the file system
shrink operation is performed on FileStore.
* 3470382 (3368361) When site consistency is configured within a private disk group and CVM is up,
the reattach operation of a detached site fails.
* 3470383 (3455460) The vxfmrshowmap and verify_dco_header utilities fail with an error.
* 3470384 (3440790) The vxassist(1M) command with parameter mirror and the vxplex command(1M) with parameter att hang.
* 3470385 (3373142) Updates to vxassist and vxedit man pages for behavioral
changes after 6.0.
* 3475525 (3475521) During a system reboot, the following error message is displayed on the console:
es_rcm.pl:scripting protocol error
* 3490147 (3485907) Panic occurs in the I/O code path.
* 3506675 (3441356) Pre-check of the upgrade_start.sh script fails on Solaris.
* 3506676 (3435475) The vxcdsconvert(1M) conversion process gets aborted for a
thin LUN formatted as a simple disk with Extensible Firmware Interface (EFI) 
format.
* 3506679 (3435225) In a given CVR setup, rebooting the master node causes one of
the slaves to panic.
* 3506707 (3400504) Upon disabling the host side Host Bus Adapter (HBA) port,
extended attributes of some devices are not seen anymore.
* 3506709 (3259732) In a CVR environment, rebooting the primary slave followed by connect-disconnect
in loop causes rlink to detach.
* 3531906 (3526500) Disk IO failures occur with DMP IO timeout error messages when DMP (Dynamic Multi-pathing) IO statistics demon is not running.
* 3536289 (3492062) Dynamic Multi-Pathing (DMP) fails to get page 0x83 LUN identifier for EMC symmetrix LUNS and continuously logs error messages.
* 3540122 (3482026) The vxattachd(1M) daemon reattaches plexes of manually detached site.
* 3543944 (3520991) The vxconfigd(1M) daemon dumps core due to memory corruption.
* 3547093 (2422535) Changes on the Veritas Volume Manager (VxVM) recovery operations are not
retained after the patch or package upgrade.
Patch ID: 6.1.0.100
* 3424815 (3424704) vxbootsetup command fails with localized strings
* 3440980 (3107699) VxDMP (Veritas Dynamic MultiPathing)  causes system panic 
after a shutdown/reboot.
* 3444900 (3399131) For PowerPath (PP) enclosure, both DA_TPD and DA_COEXIST_TPD flags are set.
* 3445233 (3339195) While running vxdiskadm error is observed
* 3445234 (3358904) System with ALUA enclosures sometimes panics during path fault scenarios
* 3445249 (3344796) shared disk group import fails on LDOM guest with SCSI-3 Persistent Reservation
enabled
* 3445268 (3422504) Paths gets unexpectdely disabled/enabled in LDOM guest
* 3445991 (3421326) DMP keeps on logging 'copyin failure messages' in system log repeatedly
* 3445992 (3421322) LDOM guest experiences intermittent I/O failures
* 3446010 (3421330) vxfentsthdw utility tests fail in LDOM guest for DMP backed virtual devices.
* 3446126 (3338208) writes from fenced out node on Active-Passive (AP/F) shared storage device fail
with unexpected error
* 3447306 (3424798) Veritas Volume Manager (VxVM) mirror attach operations
(e.g., plex attach, vxassist mirror, and third-mirror break-off snapshot
resynchronization) may take longer time under heavy application I/O load.
* 3447894 (3353211) A. After EMC Symmetrix BCV (Business Continuance Volume) device switches to
read-write mode, continuous vxdmp (Veritas Dynamic Multi Pathing) error messages
flood syslog.
B. DMP metanode/path under DMP metanode gets disabled unexpectedly.
* 3449714 (3417185) Rebooting host, after the exclusion of a dmpnode while I/O is in progress on it, leads to vxconfigd core dump.
* 3452709 (3317430) The vxdiskunsetup utility throws error after upgradation from 
5.1SP1RP4.
* 3452727 (3279932) The vxdisksetup and vxdiskunsetup utilities were failing on
disk which is part of a deported disk group (DG), even if "-f" option is specified.
* 3452811 (3445120) Change tunable VOL_MIN_LOWMEM_SZ value to trigger early readback.
* 3455455 (3409612) The value of reclaim_on_delete_start_time cannot be set to
values outside the range: 22:00-03:59
* 3456729 (3428025) System running Symantec Replication Option (VVR) and configured as VVR primary crashes when heavy parallel I/Os load are issued
* 3458036 (3418830) Node boot-up is getting hung while starting vxconfigd
* 3458799 (3197987) vxconfigd dumps core, when 'vxddladm assign names file=<filename>' is executed and the file has one or more invalid values 
for enclosure vendor ID or product ID.
* 3470346 (3377383) The vxconfigd crashes when a disk under Dynamic Multi-pathing
(DMP) reports device failure.
* 3498923 (3087893) EMC TPD emcpower names are changing every reboot with VxVM


DETAILS OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
This patch fixes the following Symantec incidents:

Patch ID: 6.1.1.400

* 3607232 (Tracking ID: 3596330)

SYMPTOM:
'vxsnap refresh' operation fails with following indicants:

Errors occur from DR (Disaster Recovery) Site of VVR (Veritas 
Volume Replicator):

o	vxio: [ID 160489 kern.notice] NOTICE: VxVM vxio V-5-3-1576 commit: 
Timedout waiting for rvg [RVG] to quiesce, iocount [PENDING_COUNT] msg 0
o	vxvm:vxconfigd: [ID 702911 daemon.warning] V-5-1-8011 Internal 
transaction failed: Transaction aborted waiting for io drain

At the same time, following errors occur from Primary Site of VVR:

vxio: [ID 218356 kern.warning] WARNING: VxVM VVR vxio V-5-0-267 Rlink 
[RLINK] disconnecting due to ack timeout on update message

DESCRIPTION:
VM (Volume Manager) Transactions on DR site get aborted as pending IOs could 
not be drained in stipulated time leading to failure of FMR (Fast-Mirror 
Resync) 'snap' operations. These IOs could not be drained because of IO 
throttling. A bug/race in conjunction with timing in VVR causes a miss in 
clearing this throttling condition/state.

RESOLUTION:
Code changes have been done to fix the race condition which ensures clearance 
of throttling state at appropriate time.

* 3640641 (Tracking ID: 3622068)

SYMPTOM:
After mirroring encapsulated root disk, rootdg fails to import if any disk in 
the disk group becomes unavailable.
It causes system becoming unbootable if /usr is mounted on a separate disk and 
is also encapsulated.

DESCRIPTION:
Starting from VxVM(Veritas Volume Manager) 6.1, by default all non-detached 
disks within a disk group should be accessible to the system so that the disk 
group can be successfully imported. It impacts system boot with alternative 
encapsulated boot disk when original encapsulated boot disk is unavailable.

RESOLUTION:
Code changes have been made to skip such check when trying to import rootdg.

* 3644360 (Tracking ID: 3644291)

SYMPTOM:
Some of the disk groups that are composed by 2TB LUNs fail to be auto-imported after a system restart.

DESCRIPTION:
During an early boot stage, sometimes system calls the efi_alloc_and_read() function that fails due to operating system issues. As a result, the disks cannot be brought online and the disk groups cannot be auto-imported.

RESOLUTION:
The code is modified to remove the efi_alloc_and_read()function.

* 3674567 (Tracking ID: 3636089)

SYMPTOM:
VVR secondary was panicked while committing the transactions with the following 
stack:
vpanic()
vol_rv_sec_write_childdone+0x18()
vol_rv_transaction_prepare+0x63c()
vol_commit_iolock_objects+0xbc()
vol_ktrans_commit+0x2d8()
volsioctl_real+0x2ac()

DESCRIPTION:
While unwinding updates in vol_rv_transaction_prepare(), double SIO(Staged IO) 
done happens result of panic.

RESOLUTION:
Code changes were made to fix the issue.

* 3682022 (Tracking ID: 3648719)

SYMPTOM:
The server panics with a following stack trace while adding or removing LUNs or HBAs: 
dmp_decode_add_path()
dmp_decipher_instructions()
dmp_process_instruction_buffer()
dmp_reconfigure_db()
gendmpioctl()
vxdmpioctl()

DESCRIPTION:
While deleting a dmpnode, Dynamic Multi-Pathing (DMP) releases the memory associated with the dmpnode structure. 
In case the dmpnode doesn't get deleted for some reason, and if any other tasks access the freed memory of this dmpnode, then the server panics.

RESOLUTION:
The code is modified to avoid the tasks from accessing the memory that is freed by the dmpnode, which is deleted. The change also fixed the memory leak issue in the buffer allocation code path.

* 3690253 (Tracking ID: 3606480)

SYMPTOM:
Issue 1:
Enabling dmp_native_support tunable fails on Solaris with following error:
VxVM vxdmpadm ERROR V-5-1-15690 Operation failed for one or more zpools
VxVM vxdmpadm ERROR V-5-1-15686 The following zpool(s) could not be migrated 
as failed to obtain root pool information - <zpool name>

Issue 2:
After enabling dmp_native_support, zfs can panic due to I/O error since 
phys_path for zpool points to OS device path and not DMP (Dynamic Multipathing) 
device.

DESCRIPTION:
Issue 1:

Enabling the dmp_native_support tunable is failing because devid (device id) 
on the Dynamic Multipathing (DMP) device is not available. The devid is not 
updated by DMP while populating the devid on root disk under DMP control. 
This causes dmp_native_support enable command to fail.

Issue 2:

Ideally the phys_path should have been set to NULL when the zpool is migrated 
from OS device to DMP device. But phys_path was getting set to OS device when 
zpool is migrated and dmp_native_support is set to 
on.

RESOLUTION:
Issue 1:
Code changes are done such that the devid on the DMP devices get updated for the 
root disk.

Issue 2:
Code changes are done so that phys_path corresponding to DMP device is populated 
for ZFS pools when the migration happens.

* 3729172 (Tracking ID: 3726110)

SYMPTOM:
On systems with high number of CPUs, DMP devices may perform  considerably slower than OS device  paths.

DESCRIPTION:
In high CPU configuration, I/O statistics related functionality in DMP takes more CPU time because DMP statistics are collected on per CPU basis. This stat collection happens in DMP I/O code path hence it reduces the I/O performance. Because of this, DMP devices perform slower than OS device paths.

RESOLUTION:
The code is modified to remove some of the stats collection functionality from DMP I/O code path. Along with this, the following tunable need to be turned off: 
1. Turn off idle lun probing. 
#vxdmpadm settune dmp_probe_idle_lun=off
2. Turn off statistic gathering functionality.  
#vxdmpadm iostat stop

Notes: 
1. Please apply this patch if system configuration has large number of CPU and if DMP performs considerably slower than OS device paths. For normal systems this issue is not applicable.

* 3736352 (Tracking ID: 3729078)

SYMPTOM:
In VVR environment, the panic may occur after SF(Storage Foundation) patch 
installation or uninstallation on the secondary site.

DESCRIPTION:
VXIO Kernel reset invoked by SF patch installation removes all Disk Group 
objects that have no preserved flag set, because the preserve flag is overlapped 
with RVG(Replicated Volume Group) logging flag, the RVG object won't be removed, 
but its rlink object is removed, result of system panic when starting VVR.

RESOLUTION:
Code changes have been made to fix this issue.

* 3771073 (Tracking ID: 3755209)

SYMPTOM:
The Dynamic Multi-pathing(DMP) device configured in Solaris LDOM guest is 
disabled when an active controller of an ALUA array is failed.

DESCRIPTION:
DMP in guest environment monitors cached target port ID of virtual paths in 
LDOM. If a controller of an ALUA array fails for some reason, active/primary 
target port ID of an ALUA array will be changed in I/O domain resulting in 
stale entry in the guest. DMP in the guest wrongly interprets this target port 
change to mark the path as unavailable. This causes I/O on the path to be 
failed. As a result the DMP device is disabled in LDOM.

RESOLUTION:
The code is modified to not use the cached target port IDs for LDOM virtual 
disks.

* 3778391 (Tracking ID: 3565212)

SYMPTOM:
While performing controller giveback operations on NetApp ALUA arrays, the 
below messages are observed in /etc/vx/dmpevents.log

[Date]: I/O error occured on Path <path> belonging to Dmpnode <dmpnode>
[Date]: I/O analysis done as DMP_PATH_BUSY on Path <path> belonging to 
Dmpnode 
<dmpnode>
[Date]: I/O analysis done as DMP_IOTIMEOUT on Path <path> belonging to 
Dmpnode 
<dmpnode>

DESCRIPTION:
During the asymmetric access state transition, DMP puts the buffer pointer 
in the delay queue based on the flags observed in the logs. This delay 
resulted in timeout and thereby filesystem went into disabled state.

RESOLUTION:
DMP code is modified to perform immediate retries instead of putting the 
buffer pointer in the delay queue for transition in progress case.

* 3808593 (Tracking ID: 3795788)

SYMPTOM:
Performance degradation is seen when many application sessions open the same data file on Veritas Volume Manager (VxVM) volume.

DESCRIPTION:
This issue occurs because of the lock contention. When many application sessions open the same data file on the VxVM volume,  the exclusive lock is occupied on all CPUs. If there are a lot of CPUs in the system, this process could be quite time- consuming, which leads to performance degradation at the initial start of applications.

RESOLUTION:
The code is modified to change the exclusive lock to the shared lock when  the data file on the volume is open.

* 3812272 (Tracking ID: 3811946)

SYMPTOM:
When invoking "vxsnap make" command with cachesize option to create space optimized snapshot, the command succeeds but the following error message is displayed in syslog:

kernel: VxVM vxio V-5-0-603 I/O failed.  Subcache object <subcache-name> does 
not have a valid sdid allocated by cache object <cache-name>.
kernel: VxVM vxio V-5-0-1276 error on Plex <plex-name> while writing volume 
<volume-name> offset 0 length 2048

DESCRIPTION:
When space optimized snapshot is created using "vxsnap make" command along with cachesize option, cache and subcache objects are created by the same command. During the creation of snapshot, I/Os from the volumes may be pushed onto a subcache even though the subcache ID has not yet been allocated. As a result, the I/O fails.

RESOLUTION:
The code is modified to make sure that I/Os on the subcache are 
pushed only after the subcache ID has been allocated.

* 3835566 (Tracking ID: 3804214)

SYMPTOM:
VxDMP (Dynamic Multi-Pathing) path enable operation fails after the disk label is
changed from guest LDOM. Open fails with error 5 (EIO) on the path being enabled.

Following error messages can be seen in /var/adm/messages:

<time-stamp hostname> vxdmp: [ID 808364 kern.notice] NOTICE: VxVM vxdmp V-5-3-0
dmp_open_path: Open failed with 5 for path 237/0x30
<time-stamp hostname> vxdmp: [ID 382146 kern.notice] NOTICE: VxVM vxdmp V-5-0-112
[Warn] disabled path 237/0x30 belonging to the dmpnode 307/0x38 due to open failure

DESCRIPTION:
While a disk is exported to the Solaris LDOM, Solaris OS in the control/IO domain
holds NORMAL mode open on the existing partitions of the DMP node. If the disk
partitions/label is changed from LDOM such that some of the older partitions are
removed, Solaris OS in the control/IO domain does not know about this change and
continues to hold NORMAL mode open on those deleted partitions. If a disabled DMP
path is enabled in this scenario, the NORMAL mode open the path fails and path
enable operation errors out. This can be worked around by detaching and
reattaching the disk to the LDOM. Due to a problem in DMP code, the stale NORMAL
mode open flag was not being reset even when the DMP disk was detached from the
LDOM. This was preventing the DMP path to be enabled even after the DMP disk was
detached from the LDOM.

RESOLUTION:
Code was fixed to reset NORMAL mode open when the DMP disk is detached from
the LDOM. With this fix, DMP disk will have to reattached to the LDOM only
once after the disk labels change. When the disk is reattached, it will get the
correct open mode (NORMAL/NDELAY) on the partitions that exist after label change.

* 3852147 (Tracking ID: 3852146)

SYMPTOM:
Shared DiskGroup fails to import when "-c" and "-o noreonline" options are
specified together with the below error:

VxVM vxdg ERROR V-5-1-10978 Disk group <dgname>: import failed:
Disk for disk group not found

DESCRIPTION:
When "-c" option is specified we update the DISKID and DGID of the disks in 
the DG. When the
information about the disks in the DG is passed to Slave node, slave node 
does not 
have the latest information since the online of the disks would not happen
because of "-o noreonline" being specified. Now since slave node does not 
have
the latest 
information, it would not be able to identify proper disks belonging to the 
DG
which leads to DG import failing with "Disk for disk group not found".

RESOLUTION:
Code changes have been done to handle the working of "-c" and "-o 
noreonline"
together.

* 3852455 (Tracking ID: 3603792)

SYMPTOM:
The first boot after live upgrade to new version of Solaris 11 and VxVM takes 
long time since post installation stalled for a long time.

DESCRIPTION:
In Solaris 11, the OS command devlinks which used to add /dev entries stalled 
for a long time in post installation of VxVM. The OS command devfsadm should be 
used in the post-install script.

RESOLUTION:
The code is modified to replace devlinks with devfsadm in the post installation 
process of VxVM.

* 3852800 (Tracking ID: 3819670)

SYMPTOM:
When smartmove with 'vxevac' command is run in background by hitting 'ctlr-z' key and 'bg' command, the execution of 'vxevac' is terminated abruptly.

DESCRIPTION:
As part of "vxevac" command for data movement, VxVM submits the data as a task in the kernel, and use select() primitive on the task file descriptor to wait for task finishing events to arrive. When "ctlr-z" and bg is used to run vxevac in background, the select() returns -1 with errno EINTR. VxVM wrongly interprets it as user termination action and hence vxevac is terminated.  
Instead of terminating vxevac, the select() should be retried untill task completes.

RESOLUTION:
The code is modified so that when select() returns with errno EINTR, it checks whether vxevac task is finished. If not, the select() is retried.

* 3853086 (Tracking ID: 3783356)

SYMPTOM:
After DMP module fails to load, dmp_idle_vector is not NULL.

DESCRIPTION:
After DMP module load failure, DMP resources are not cleared off from the system memory, so some of the 
resources are in NON-NULL value. When system retries to load, it frees invalid data, leading to system panic with error 
message BAD FREE, because the data being freed is not valid at that point.

RESOLUTION:
The code is modified to clear up the DMP resources when module failure happens.

* 3854390 (Tracking ID: 3853049)

SYMPTOM:
On a server with more number CPUs, the stats output of vxstat is delayed beyond 
the set interval. Also multiple sessions of vxstat is impacting the IO 
performance.

DESCRIPTION:
The vxstat acquires an exclusive lock on each CPU in order to gather the stats. 
This would affect the consolidation and display of stats in an environment with 
huge number of CPUs and disks. The output of stats for interval of 1 second can 
get delayed beyond the set interval. Also the acquisition of lock happens in 
the IO path which would affect the IO performance due contention of these locks.

RESOLUTION:
The code modified to remove the exclusive spin lock.

* 3854526 (Tracking ID: 3544020)

SYMPTOM:
Volume Manager tunables are getting reset to default after patch upgade

DESCRIPTION:
The file "/kernel/drv/vxio.conf" which is used to store all the tunable values is 
getting replaced with the default template during patch upgrade. 
This leads to values of all the tunables getting reset to default after patch 
upgrade.

RESOLUTION:
Changes are done to preserve the file "/kernel/drv/vxio.conf" as part of patch 
upgrade.

* 3856384 (Tracking ID: 3525490)

SYMPTOM:
In VVR (Veritas Volume Replication) environment, system panic with the following 
stack,

#0 crash_kexec at ffffffff800b1509
#1 __die at ffffffff80065137
#2 do_page_fault at ffffffff80067430
#3 error_exit at ffffffff8005ddf9
    [exception RIP: nmcom_wait_msg+449]
#4 nmcom_server_proc at ffffffff889f04b6 [vxio]

DESCRIPTION:
While VVR sending messages with UDP, it uses different data structure with TCP. In 
case of receiving partial data, the message is explicitly typecast to the same 
structure for both TCP and UDP. This will cause some pointers in UDP message header 
become invalid and panic the system while copying data.

RESOLUTION:
Code changes have been made to fix the problem.

* 3857121 (Tracking ID: 3857120)

SYMPTOM:
After stopping Oracle database process, this process does not run Oracle 
database again but it hangs there.

DESCRIPTION:
Two threads from VxVM(Veritas Volume Manager) trying to asynchronously 
manipulate the per-cpu data structures for I/O counting, which causes to a race 
condition that might make I/O count leaking, hence the volume cant be closed 
and results in the process hang.

RESOLUTION:
VxVM code has been changed to avoid the race condition happening.

* 3864112 (Tracking ID: 3860503)

SYMPTOM:
Poor performance of vxassist mirroring is observed compared to using raw dd
utility to do mirroring .

DESCRIPTION:
There is huge lock contention on high end server with large number of cpus,
because doing copy on each region needs to obtain some unnecessary cpu locks.

RESOLUTION:
VxVM code has been changed to decrease the lock contention.

* 3864625 (Tracking ID: 3599977)

SYMPTOM:
During a replica connection, referencing a port that is already deleted in another thread causes a system panic with a similar stack trace as below:
.simple_lock()
soereceive()
soreceive()
.kernel_add_gate_cstack()
kmsg_sys_rcv()
nmcom_get_next_mblk()
nmcom_get_next_msg()
nmcom_wait_msg_tcp()
nmcom_server_proc_tcp()
nmcom_server_proc_enter()
vxvm_start_thread_enter()

DESCRIPTION:
During a replica connection, a port is created before increasing the count. This is to protect the port from getting deleted. However, another thread deletes the port before the count is increased and after the port is created. 
While the replica connection thread proceeds, it refers to the port that is already deleted, which causes a NULL pointer reference and a system panic.

RESOLUTION:
The code is modified to prevent asynchronous access to the count that is associated with the port by means of locks.

* 3864627 (Tracking ID: 3677359)

SYMPTOM:
VxDMP causes system panic after a shutdown or reboot with the following stack trace:
mutex_enter() 
volinfo_ioct()
volsioctl_real()
cdev_ioctl()
dmp_signal_vold()
dmp_throttle_paths()
dmp_process_stats()
dmp_daemons_loop()
thread_start()
or
panicsys()
vpanic_common()
panic+0x1c()
mutex_enter()
cdev_ioctl()
dmp_signal_vold()
dmp_check_path_state()
dmp_restore_callback()
dmp_process_scsireq()
dmp_daemons()
thread_start()

DESCRIPTION:
In a special scenario of system shutdown or reboot, the DMP (Dynamic MultiPathing) I/O statistic daemon tries to call the ioctl functions in VxIO module which is being unloaded. As a result, the system panics.

RESOLUTION:
The code is modified to stop the DMP I/O statistic daemon and DMP restore daemon before system shutdown or reboot. Also, the code is modified to avoid other probes to VxIO devices during shutdown.

* 3864628 (Tracking ID: 3686698)

SYMPTOM:
vxconfigd was getting hung due to deadlock between two threads

DESCRIPTION:
Two threads were waiting for same lock causing deadlock between 
them. This will lead to block all vx commands. 
untimeout function will not return until pending callback is cancelled  (which 
is set through timeout function) OR pending callback has completed its 
execution (if it has already started). Therefore locks acquired by callback 
routine should not be held across call to untimeout routine or deadlock may 
result.

Thread 1: 
    untimeout_generic()   
    untimeout()
    voldio()
    volsioctl_real()
    fop_ioctl()
    ioctl()
    syscall_trap32()
 
Thread 2:
    mutex_vector_enter()
    voldsio_timeout()
    callout_list_expire()
    callout_expire()
    callout_execute()
    taskq_thread()
    thread_start()

RESOLUTION:
Code changes have been made to call untimeout outside the lock 
taken by callback handler.

* 3864980 (Tracking ID: 3594158)

SYMPTOM:
The system panics on a VVR secondary node with the following stack trace:
.simple_lock()
soereceive()
soreceive()
.kernel_add_gate_cstack()
kmsg_sys_rcv()
nmcom_get_next_mblk()
nmcom_get_next_msg()
nmcom_wait_msg_tcp()
nmcom_server_proc_tcp()
nmcom_server_proc_enter()
vxvm_start_thread_enter()

DESCRIPTION:
You may issue a spinlock or unspinlock to the replica to check whether to use a checksum in the received packet. During the lock or unlock operation, if there is a transaction that is being processed with the replica, which rebuilds the replica object in the kernel, then there is a possibility that the replica referenced in spinlock is different than the one which the replica has referenced in unspinlock (especially when the replica is referenced through several pointers). As a result, the system panics.

RESOLUTION:
The code is modified to set the flag in the port attribute to indicate whether to use the checksum during a port creation. Hence, for each packet that is received, you only need to check the flag in the port attribute rather than referencing it to the replica object. As part of the change, the spinlock or unspinlock statements are also removed.

* 3864983 (Tracking ID: 3614182)

SYMPTOM:
First system reboot after migration from Solaris Multi-Pathing (MPXIO) to
Symantec Dynamic Multi-Pathing (DMP) native takes extremely long time.
Node may appear hung. This happens when there are a large number of
zpools to be migrated. In some cases, the system may take 20+ hours to come up
after first reboot.

DESCRIPTION:
This issue is specific to a configuration where the zpools (and the LUNs hosting
the zpools) are shared between multiple systems, and the zpools are already
imported on a different system than the one where MPXIO to DMP migration is
being performed. An example of this would be multiple nodes of a Symantec VCS
(Veritas Cluster Server) configuration. Such zpools should be skipped during
DMP migration. Instead, the migration logic was unnecessarily running time
consuming ZFS commands on each of these zpools. These commands were failing and
contributing to extremely long boot up times.

RESOLUTION:
DMP migration code was changed to detect above mentioned zpools and skip
running ZFS commands on them.

* 3864986 (Tracking ID: 3621232)

SYMPTOM:
When the vradmin ibc command is executed to initiate the In-band Control (IBC) procedure, the vradmind (VVR daemon) on VVR secondary node goes into the disconnected state. Due to which, the following IBC procedure or vradmin ibc commands cannot be started or executed on VVRs secondary node and a message similar to the following appears on  VVRs primary node:
    
VxVM VVR vradmin ERROR V-5-52-532 Secondary is undergoing a state transition. Please re-try the command after some time.
VxVM VVR vradmin ERROR V-5-52-802 Cannot start command execution on Secondary.

DESCRIPTION:
When IBC procedure runs into the commands finish state, the vradmin on VVR secondary node goes into a disconnected state, which the vradmind on primary node fails to realize. 
In such a scenario, the vradmind on primary refrains from sending a handshake request to the secondary node which can change the primary nodes state from disconnected to running. As a result, the vradmind in the primary node continues to be in the disconnected state and the vradmin ibc command fails to run on the VVR secondary node despite of being in the running state on the VVR primary node.

RESOLUTION:
The code is modified to make sure the vradmind on VVR primary node is notified while it goes into the disconnected state on VVR secondary node. As a result, it can send out a handshake request to take the secondary node out of the disconnected state.

* 3864987 (Tracking ID: 3513392)

SYMPTOM:
secondary panics when rebooted while heavy IOs are going on primary

PID: 18862  TASK: ffff8810275ff500  CPU: 0   COMMAND: "vxiod"
#0 [ffff880ff3de3960] machine_kexec at ffffffff81035b7b
#1 [ffff880ff3de39c0] crash_kexec at ffffffff810c0db2
#2 [ffff880ff3de3a90] oops_end at ffffffff815111d0
#3 [ffff880ff3de3ac0] no_context at ffffffff81046bfb
#4 [ffff880ff3de3b10] __bad_area_nosemaphore at ffffffff81046e85
#5 [ffff880ff3de3b60] bad_area_nosemaphore at ffffffff81046f53
#6 [ffff880ff3de3b70] __do_page_fault at ffffffff810476b1
#7 [ffff880ff3de3c90] do_page_fault at ffffffff8151311e
#8 [ffff880ff3de3cc0] page_fault at ffffffff815104d5
#9 [ffff880ff3de3d78] volrp_sendsio_start at ffffffffa0af07e3 [vxio]
#10 [ffff880ff3de3e08] voliod_iohandle at ffffffffa09991be [vxio]
#11 [ffff880ff3de3e38] voliod_loop at ffffffffa0999419 [vxio]
#12 [ffff880ff3de3f48] kernel_thread at ffffffff8100c0ca

DESCRIPTION:
If the replication stage IOs are started after serialization of the replica volume, 
replication port  could be deleted  and set to NULL during handling the replica 
connection changes,  this will cause the panic since we have not checked if the 
replication port is still valid before referencing to it.

RESOLUTION:
Code changes have been done to abort the stage IO if replication port is NULL.

* 3864988 (Tracking ID: 3625890)

SYMPTOM:
After running the vxdisk resize command, the following message is displayed: 
"VxVM vxdisk ERROR V-5-1-8643 Device <disk name> resize failed: Invalid 
attribute specification"

DESCRIPTION:
Two reserved cylinders for special usage for CDS (Cross-platform Data Sharing)
VTOC(Volume Table of Contents) disks. In case of expanding a disk with
particular disk size on storage side, VxVM(Veritas Volume Manager) may calculate
the cylinder number as 2, which causes the vxdisk resize fails with the error
message of "Invalid attribute specification".

RESOLUTION:
The code is modified to avoid the failure of resizing a CDS VTOC disk.

* 3864989 (Tracking ID: 3521726)

SYMPTOM:
When using Symantec Replication Option, system panic happens while freeing
memory with the following stack trace on AIX,

pvthread+011500 STACK:
[0001BF60]abend_trap+000000 ()
[000C9F78]xmfree+000098 ()
[04FC2120]vol_tbmemfree+0000B0 ()
[04FC2214]vol_memfreesio_start+00001C ()
[04FCEC64]voliod_iohandle+000050 ()
[04FCF080]voliod_loop+0002D0 ()
[04FC629C]vol_kernel_thread_init+000024 ()
[0025783C]threadentry+00005C ()

DESCRIPTION:
In certain scenarios, when a write IO gets throttled or un-winded in VVR, we
free the memory related to one of our data structures. When we restart this IO,
the same memory gets illegally accessed and freed again even though it was
freed.It causes system panic.

RESOLUTION:
Code changes have been done to fix the illegal memory access issue.

* 3865415 (Tracking ID: 3736502)

SYMPTOM:
When FMR is configured in VVR environment, 'vxsnap refresh' fails with below 
error message:
"VxVM VVR vxsnap ERROR V-5-1-10128 DCO experienced IO errors during the
operation. Re-run the operation after ensuring that DCO is accessible".
Also, multiple messages of connection/disconnection of replication 
link(rlink) are seen.

DESCRIPTION:
Inherently triggered rlink connection/disconnection causes the transaction 
retries. During transaction, memory is allocated for Data Change Object(DCO) 
maps and is not cleared on abortion of a transaction.
This leads to a problem of memory leak and eventually to exhaustion of maps.

RESOLUTION:
The fix has been added to clear the allocated DCO maps when transaction 
aborts.

* 3865631 (Tracking ID: 3564260)

SYMPTOM:
VVR commands are unresponsive when replication is paused and resumed in a loop.

DESCRIPTION:
While Veritas Volume Replicator (VVR) is in the process of sending updates then pausing a replication is deferred until acknowledgements of updates are received or until an error occurs. For some reason, if the acknowledgements get delayed or the delivery fails, the pause operation continues to get deferred resulting in unresponsiveness.

RESOLUTION:
The code is modified to resolve the issue that caused unresponsiveness.

* 3865633 (Tracking ID: 3721565)

SYMPTOM:
vxconfigd hang is seen with below stack.
genunix:cv_wait_sig_swap_core
genunix:cv_wait_sig_swap 
genunix:pause
unix:syscall_trap32

DESCRIPTION:
In FMR environment, write is done on a source volume having space-optimized(SO) 
snapshot. Memory is acquired first and then ILOCKs are acquired on individual SO 
volumes for pushed writes. On the other hand, a user write on SO snapshot will first 
acquire ILOCK and then acquire memory. This causes deadlock.

RESOLUTION:
Code is modified to resolve deadlock.

* 3865638 (Tracking ID: 3727939)

SYMPTOM:
Data corruption or VTOC label corruption may occur due to stale device 
entries present in the /dev/vx/[r]dmp directories.

DESCRIPTION:
The /dev/vx/[r]dmp directories, where the DMP device entries are created, are mounted as tmpfs (swap) during a boot cycle. These directories can be unmounted while the 
vxconfigd(1M) daemon is running and the DMP devices are in use. 
The DMP device entries are recreated on the disk instead of swap device in such situations. 
These are re-mounted on tmpfs during the next boot cycle thus the device entries created on disk become stale eventually. In such scenarios, the subsequent unmount of these directories results in reading those stale entries. Thus, data corruption or VTOC label corruption occurs.

RESOLUTION:
The code is modified to clear the stale entries in the /dev/vx/[r]dmp directories before starting the vxconfigd(1M) daemon.

* 3865640 (Tracking ID: 3749557)

SYMPTOM:
System hangs and becomes unresponsive because of heavy memory consumption by 
vxvm.

DESCRIPTION:
In the Dirty Region Logging(DRL) update code path an erroneous condition was
present that lead to an infinite loop which keeps on consuming memory. This leads
to consumption of large amounts of memory making the system unresponsive.

RESOLUTION:
Code has been fixed, to avoid the infinite loop, hence preventing the hang which
was caused by high memory usage.

* 3865645 (Tracking ID: 3841242)

SYMPTOM:
Threads will be hung and and the stack will contain any of the following 
function.
ddi_pathname_to_dev_t()
ddi_find_devinfo()
ddi_install_driver()
devinfo_tree_lock
e_ddi_get_dev_info()
Stack may look like below - 
void genunix:cv_wait
void genunix:ndi_devi_enter
int genunix:devi_config_one
int genunix:ndi_devi_config_one
int genunix:resolve_pathname_noalias
int genunix:resolve_pathname
dev_t genunix:ddi_pathname_to_dev_t
void vxdmp:dmp_setbootdev
int vxdmp:_init
int genunix:modinstall

DESCRIPTION:
Oracle has deprecated some APIs 
ddi_pathname_to_dev_t()
ddi_find_devinfo()
ddi_install_driver()
devinfo_tree_lock
e_ddi_get_dev_info() which were used by VxVM(Veritas Volume Manager) and which 
were not thread safe.
If VxVM modules are loaded in parallel to the other OS modules while making use 
of these APIs, it may result in a 
deadlock and a hang could be observed.

RESOLUTION:
Deprecated ddi_x() API calls have been replaced with 
ldi_x() calls which are thread safe.

* 3865646 (Tracking ID: 3628743)

SYMPTOM:
On Solaris 11.2, New boot environment takes long time to start up during 
live upgrade. Here deadlock is seen in ndi_devi_enter( ), when loading VxDMP 
driver and Deadlocks caused by VXVM drivers due to use of Solaris 
ddi_pathname_to_dev_t or ddi_hold_devi_by_path private interfaces.

DESCRIPTION:
Here deadlocks caused by VXVM drivers due to use of Solaris 
ddi_pathname_to_dev_t or e_ddi_hold_devi_by_path private interface and 
ddi_pathname_to_dev_t/e_ddi_hold_devi_by_path are Solaris internal use only 
routine and is not multi-thread safe.  Normally this is not a problem as the 
various VXVM drivers don't unload or detach, however there are certain 
conditions where our _init routines might be called which can expose this 
deadlock condition.

RESOLUTION:
Code is modified to resolve deadlock.

* 3865649 (Tracking ID: 3848351)

SYMPTOM:
While uninstalling the Veritas Storage Foundation stack, vxglm fails to stop as the 
vxglm driver could not be unloaded.
Veritas InfoScale Enterprise Shutdown did not complete successfully. 
vxglm failed to stop on <node_name>

DESCRIPTION:
During GAB initialization, 'e_ddi_get_dev_info' API calls 'ndi_hold_drive' which 
increases the driver reference count.
During de-initialization, driver hold count remains non-zero and vxglm driver fails 
to unload.

RESOLUTION:
During GAB de-initialization, vxglm driver count is decreased using 
'ndi_rele_driver'.

* 3865653 (Tracking ID: 3795739)

SYMPTOM:
In a split brain scenario, cluster formation takes very long time.

DESCRIPTION:
In a split brain scenario, the surviving nodes in the cluster try to preempt the keys of nodes leaving the cluster. If the keys have been already preempted by one of the surviving nodes, other surviving nodes will receive UNIT Attention. DMP (Dynamic Multipathing) then retries the preempt command after a delayof 1 second if it receives Unit attention. Cluster formation cannot complete untill PGR keys of all the leaving nodes are removed from all the disks. If the number of disks are very large, the preemption of keys takes a lot of time, leading to the very long time for cluster formation.

RESOLUTION:
The code is modified to avoid adding delay for first couple of retries when reading PGR keys. This allows faster cluster formation with arrays that clear the Unit Attention condition sooner.

* 3866241 (Tracking ID: 3790136)

SYMPTOM:
File system hang can be observed sometimes due to IO's hung in DRL.

DESCRIPTION:
There might be some IO's hung in DRL of mirrored volume due to incorrect 
calculation of outstanding IO's on volume and number of active IO's which are 
currently in progress on DRL. The value of the outstanding IO on volume can get 
modified incorrectly leading to IO's on DRL not to progress further which in 
turns results in a hang kind of scenario.

RESOLUTION:
Code changes have been done to avoid incorrect modification of value of 
outstanding IO's on volume and prevent the hang.

* 3866269 (Tracking ID: 3736156)

SYMPTOM:
Solaris 11 update 1 system fails to come up after enabling dmp_native_support and reboot.

DESCRIPTION:
Veritas Dynamic Multi-pathing (DMP) doesnt handle EFI labeled non scsi disks correctly. Hence, during starting up, the vxconfigd process generates instructions to mark EFI labeled non scsi disks as failed. If failed disk happens to be the boot disk controlled by Veritas Dynamic Multi-pathing (DMP), the system is stuck during starting up.

RESOLUTION:
The Veritas Dynamic Multi-pathing (DMP) code is modified to correctly handle EFI labeled non scsi disks.

* 3866593 (Tracking ID: 3861544)

SYMPTOM:
For Extensible Firmware Interface (EFI) labelled disks, in some cases Dynamic
Multipathing(DMP) disables the disks for I/Os when one of its
controller(switch) fails.

DESCRIPTION:
When an open is issued on disk, DMP tries to perform open operation on the disks
through all of its path.
When one of its controller(switch) fails the paths going through that controller
can still be in active state for short time.
In case of an EFI labelled disk when an open is issued on the failed path (path
failed because controller is down), DMP returns an error even though the open
through other paths(available paths) of disk might succeed.
And hence we see the disk as faulted and unavailable for I/Os.

RESOLUTION:
More code changes are done so that available paths can be used to  perform open
operation if some of the paths are unavailable.

* 3866624 (Tracking ID: 3769927)

SYMPTOM:
Turning off dmp_native_support tunable fails with the following errors:

VxVM vxdmpadm ERROR V-5-1-15690 Operation failed for one or more zpools 
VxVM vxdmpadm ERROR V-5-1-15686 The following zpool(s) could not be migrated 
as they are not healthy - <zpool_name>.

DESCRIPTION:
Turning off the dmp_native_support tunable fails even if the zpools are healthy.
The vxnative script doesn't allow turning off the dmp_native_support if it detects that the zpool is unhealthy, which means the zpool state is ONLINE and some action is required to be taken on zpool. "upgrade zpool" is considered as one of the actions indicating unhealthy zpool state. This is not correct.

RESOLUTION:
The code is modified to consider "upgrade zpool" action as expected. Turning off dmp_native_support tunable is supported if the action is "upgrade zpool"..

* 3866643 (Tracking ID: 3539548)

SYMPTOM:
Adding MPIO(Multi Path I/O) disk that had been removed earlier may result in 
following two issues:
1. 'vxdisk list' command shows duplicate entry for DMP (Dynamic Multi-Pathing) 
node with error state.
2. 'vxdmpadm listctlr all' command shows duplicate controller names.

DESCRIPTION:
1. Under certain circumstances, deleted MPIO disk record information is left in 
/etc/vx/disk.info file with its device number as -1 but its DMP node name is 
reassigned to other MPIO disk. When the deleted disk is added back, it is 
assigned the same name, without validating for conflict in the name. 
2. When some devices are removed and added back to the system, we are adding a 
new controller for each and every path that we have discovered. This leads to 
duplicated controller entries in DMP database.

RESOLUTION:
1. Code is modified to properly remove all stale information about any disk 
before updating MPIO disk names. 
2. Code changes have been made to add the controller for selected paths only.

* 3866651 (Tracking ID: 3596282)

SYMPTOM:
FMR (Fast Mirror Resync) operations fail with error "Failed to allocate a new 
map due to no free map available in DCO".
 
"vxio: [ID 609550 kern.warning] WARNING: VxVM vxio V-5-3-1721
voldco_allocate_toc_entry: Failed to allocate a new map due to no free map
available in DCO of [volume]"

It often leads to disabling of the snapshot.

DESCRIPTION:
For instant space optimized snapshots, stale maps are left behind for DCO (Data 
Change Object) objects at the time of creation of cache objects. So, over the 
time if space optimized snapshots are created that use a new cache object, 
stale maps get accumulated, which eventually consume all the available DCO 
space, resulting in the error.

RESOLUTION:
Code changes have been done to ensure no stale entries are left behind.

* 3866679 (Tracking ID: 3856146)

SYMPTOM:
Two issues are hit on latest SRUs Solaris 11.2.8 and greater and Solaris sparc 
11.3 when dmp_native 
support is on. These issues are mentioned below:
1.            Turning of dmp_native_support  on and off requires reboot. 
System gets panic during the reboot as a part of setting dmp_native_support 
off.
2.            Sometimes, system comes up after reboot when dmp_native_support 
is 
set to off. In such case, panic is observed when system is rebooted after 
uninstallation of SF and it fails to boot up.
The panic string is same for both the issues.
panic[cpu0]/thread=20012000: read_binding_file: /etc/name_to_major file not 
found

DESCRIPTION:
The issue happened because of /etc/system and /etc/name_to_major files.

As per the discussion with Oracle through SR(3-11640878941)

Removal of aforementioned 2 files from the boot-archive is causing this panic.
Because  files -> /etc/name_to_major & /etc/system are included in the SPARC 
boot_archive of Solaris 11.2.8.4.0 ( and greater versions) and they should not 
be removed. 
The system will fail to come up if they are removed."

RESOLUTION:
The code has been modified to avoid panic while setting dmp_native_support to 
off.

* 3867134 (Tracking ID: 3486861)

SYMPTOM:
Primary node panics with below stack when storage is removed while replication is 
going on with heavy IOs.
Stack:
oops_end 
no_context 
page_fault 
vol_rv_async_done 
vol_rv_flush_loghdr_done 
voliod_iohandle 
voliod_loop

DESCRIPTION:
In VVR environment, when write to data volume failson primary node, error handling 
is initiated. As a part 
of it, SRL header will be flushed. As primary storage is removed, flushing will 
fail. Panic will be hit as 
invalid values will be accessed while logging error message.

RESOLUTION:
Code is modified to resolve the issue.

* 3867135 (Tracking ID: 3658079)

SYMPTOM:
If the size of backup slice of volumes is larger than 64GB, VxVMwraps it around it and exports it to LDOM guest domain.

DESCRIPTION:
The data type of variables declared to store volume's sector/track and 
tracks/cylinder are not sufficient to handle the value when the volume
size goes beyond 64GB. Due to this the size of the cylinder gets wrapped around 
to 2048 sectors.

RESOLUTION:
The code has been changed to support volumes up to size 1.4TB.

* 3867137 (Tracking ID: 3674614)

SYMPTOM:
Restarting the vxconfigd(1M) daemon on the slave (joiner) node during node-join
operation  may cause the vxconfigd(1M) daemon to become unresponsive on the
master and the joiner node.

DESCRIPTION:
When vxconfigd(1M) daemon is restarted in the middle of the node join process,
it wrongly assumes that this is a slave rejoin case, and sets the rejoin flag.
Since the rejoin flag is wrongly set, the import operation of the disk groups on
the slave node fails, and the join process is not terminated smoothly. As a
result, the vxconfigd(1M) daemon becomes unresponsive on the master and the
slave node.

RESOLUTION:
The code is modified to differentiate between the rejoin scenario and the
vxconfigd(1M) daemon restart scenario.

* 3867308 (Tracking ID: 3442024)

SYMPTOM:
The adddisk <disk_name> command fails to add the Compressed Diagonal Storage(CDS) EFI disk to the CDS disk group. The failure occurs with the following message:
Creating a new disk group named <disk group> containing the disk
device <disk name> with the name <disk group>.
VxVM  ERROR V-5-2-121  Creating disk group <disk group> with disk device <disk name> failed.
VxVM vxdg ERROR V-5-1-6478 Device <disk name> cannot be added to a CDS disk 
Group

DESCRIPTION:
The vxdiskadm(1M) option #1(adding disk to disk group and initialization) does not provide the CDS format option for an EFI labeled disk, which causes the EFI labeled disk to be formatted as sliced. Subsequently, the adddisk operation fails because a disk with sliced format cannot be added to a CDS disk group.

RESOLUTION:
The vxdiskadm utility code is modified to allow an EFI labeled disk to be added to an existing CDS disk group, and it can be initialized with CDS format.

* 3867315 (Tracking ID: 3672759)

SYMPTOM:
When a DMP database is corrupted, the vxconfigd(1M) daemon may core dump with the following stack trace:
database is corrupted.
  ddl_change_dmpnode_state ()
  ddl_data_corruption_msgs ()
  ddl_reconfigure_all ()
  ddl_find_devices_in_system ()
  find_devices_in_system ()
  req_change_state ()
  request_loop ()
  main ()

DESCRIPTION:
The issue is observed because the corrupted DMP database is not properly destroyed.

RESOLUTION:
The code is modified to remove the corrupted DMP database.

* 3867357 (Tracking ID: 3544980)

SYMPTOM:
Vxconfigd reports error message like below when scanning disks.
"vxconfigd V-5-1-7920 di_init() failed"

DESCRIPTION:
In Solaris discovery codepath, when di_init() system call fails, walknode() is 
called to retrieve the device info. If any error occurs during discovery, all 
disks will disappear after scanning disks. OS vendor suggested to retry calling 
di_init() with delay if di_init() fails, instead of calling walknode().

RESOLUTION:
Code changes have been made to deprecate the call of walknode() and to retry 
calling di_init() 3 times with delay if di_init() fails.

* 3867706 (Tracking ID: 3645370)

SYMPTOM:
After running the vxevac command, if the user tries to rollback or commit the evacuation for a disk containing DRL plex, the action fails with the following errors:

/etc/vx/bin/vxevac -g testdg  commit testdg02 testdg03
VxVM vxsd ERROR V-5-1-10127 deleting plex %1:
        Record is associated
VxVM vxassist ERROR V-5-1-324 fsgen/vxsd killed by signal 11, core dumped
VxVM vxassist ERROR V-5-1-12178 Could not commit subdisk testdg02-01 in 
volume testvol
VxVM vxevac ERROR V-5-2-3537 Aborting disk evacuation

/etc/vx/bin/vxevac -g testdg rollback testdg02 testdg03
VxVM vxsd ERROR V-5-1-10127 deleting plex %1:
        Record is associated
VxVM vxassist ERROR V-5-1-324 fsgen/vxsd killed by signal 11, core dumped
VxVM vxassist ERROR V-5-1-12178 Could not rollback subdisk testdg02-01 in 
volume
testvol
VxVM vxevac ERROR V-5-2-3537 Aborting disk evacuation

DESCRIPTION:
When the user uses the vxevac command, new plexes are created on the target disks. Later,  during the commit or roll back operation, VxVM deletes the plexes on the source or the target disks. 
For deleting a plex, VxVM should delete its sub disks first, otherwise the plex deletion fails with the following error message:
VxVM vxsd ERROR V-5-1-10127 deleting plex %1:
        Record is associated 
The error is displayed because the code does not handle the deletion of subdisks of plexes marked for DRL (dirty region logging) correctly.

RESOLUTION:
The code is modified to handle evacuation of disks with DRL plexes correctly.  .

* 3867708 (Tracking ID: 3495548)

SYMPTOM:
For EMC PowerPath controlled devices with Dynamic Multipathings (DMP), and using Operating System Naming (OSN) scheme, vxdisk(1M) rm command fails with the following error message: 

VxVM vxdisk ERROR V-5-1-639 Failed to obtain locks: <disk-name>:: no such object in the configuration

DESCRIPTION:
The failure occurs because the slice information is incorrectly added to the disk name that is specified on command line to generate a full disk name. Eventually, Veritas Volume Manager (VxVM) fails to find this incorrect disk name in its database and reports an error.

RESOLUTION:
The code is modified to properly generate the whole disk name in case of PowerPath controlled devices with OSN naming scheme.

* 3867709 (Tracking ID: 3767531)

SYMPTOM:
In Layered volume layout with FSS configuration, when few of the 
FSS_Hosts are rebooted, Full resync is happening for non-affected disks on 
master.

DESCRIPTION:
In configuration, where there are multiple FSS-Hosts, with 
layered volume created on the hosts. When the slave nodes are rebooted , few 
of the 
sub-volumes of non-affected disks are fully getting synced on master.

RESOLUTION:
Code-changes have been made to sync only needed part of sub-
volume.

* 3867710 (Tracking ID: 3788644)

SYMPTOM:
When DMP (Dynamic Multi-Pathing) native support enabled for Oracle ASM 
environment, if we constantly adding and removing DMP devices, it will cause error 
like:
/etc/vx/bin/vxdmpraw enable oracle dba 775 emc0_3f84
VxVM vxdmpraw INFO V-5-2-6157
Device enabled : emc0_3f84
Error setting raw device (Invalid argument)

DESCRIPTION:
There is a limitation (8192) of maximum raw device number N (exclusive) of 
/dev/raw/rawN. This limitation is defined in boot configuration file. When binding a 
raw 
device to a dmpnode, it uses /dev/raw/rawN to bind the dmpnode. The rawN is 
calculated by one-way incremental process. So even if we unbind the device later on, 
the "released" rawN number will not be reused in the next binding. When the rawN 
number is increased to exceed the maximum limitation, the error will be reported.

RESOLUTION:
Code has been changed to always use the smallest available rawN number instead of 
calculating by one-way incremental process.

* 3867711 (Tracking ID: 3802750)

SYMPTOM:
Once VxVM (Veritas Volume Manager) volume I/O-shipping functionality is turned on, it is not getting disabled even after the user issues the correct command to disable it.

DESCRIPTION:
VxVM (Veritas Volume Manager) volume I/O-shipping functionality is turned off by default. The following two commands can be used to turn it on and off:
	vxdg -g <dgname> set ioship=on
	vxdg -g <dgname> set ioship=off

The command to turn off I/O-shipping is not working as intended because I/O-shipping flags are not reset properly.

RESOLUTION:
The code is modified to correctly reset I/O-shipping flags when the user issues the CLI command.

* 3867712 (Tracking ID: 3807879)

SYMPTOM:
Writing the backup EFI GPT disk label during the disk-group flush 
operation may cause data corruption on volumes in the disk group. The backup 
label could incorrectly get flushed to the disk public region and overwrite the 
user data with the backup disk label.

DESCRIPTION:
For EFI disks initialized under VxVM (Veritas Volume Manager), it 
is observed that during a disk-group flush operation, vxconfigd (veritas 
configuration daemon) could stop writing the EFI GPT backup label to the volume 
public region, thereby causing user data corruption. When this issue happens, 
the real user data are replaced with the backup EFI disk label

RESOLUTION:
The code is modified to prevent the writing of the EFI GPT backup 
label during the VxVM disk-group flush operation.

* 3867714 (Tracking ID: 3819832)

SYMPTOM:
No syslog message seen when dmp detects controller disabled/enabled

DESCRIPTION:
Whenever there is action taken from Storage whether addtion or 
removal, DMP detects the events of failure or notifications of additions, and 
as 
prt of discovery it disables / enables the controller and message for this was 
not getting logged in syslog file.

RESOLUTION:
Code-changes made to show the syslog message for controller 
disable/enable event.

* 3867881 (Tracking ID: 3867145)

SYMPTOM:
When VVR SRL occupation > 90%, then output the SRL occupation is shown by 10 
percent.

DESCRIPTION:
This is kind of enhancement, to show the SRL Occupation when it's more than 
90% is previously shown with 10 percentage gap.
Here the enhancement is to show the logs with 1 percentage granularity.

RESOLUTION:
Changes are done to show the syslog messages wih 1 percent granularity, when 
SRL is filled > 90%.

* 3867928 (Tracking ID: 3764326)

SYMPTOM:
VxDMP repeatedly reports warning messages in system log:
	WARNING: VxVM vxdmp V-5-0-2046 : Failed to get devid for device 
0x70259720
	WARNING: VxVM vxdmp V-5-3-2065 dmp_devno_to_devidstr ldi_get_devid 
failed for devno 0x13800000a60

DESCRIPTION:
Due to VxDMP code issue, the device path name is inconsistent during creation and deletion. It leaves stale device file under /devices. Because some devices don't support Solaris devid operations, the devid related functions fail against such devices. VxDMP doesn't skip such devices when creating or removing minor nodes.

RESOLUTION:
The code is modified to address the device path name inconsistency and skip devid manipulation for third party devices.

* 3869659 (Tracking ID: 3868444)

SYMPTOM:
Disk header timestamp is updated even if the disk group import fails.

DESCRIPTION:
While doing dg import operation, during join operation disk header timestamps are updated. This makes difficult for 
support to understand which disk is having latest config copy if dg import is failed and decision is to be made if
force dg import is safe or not.

RESOLUTION:
Dump the old disk header timestamp and sequence number in the syslog which can be referred on deciding if force dg 
import would be safe or not

* 3870440 (Tracking ID: 3873489)

SYMPTOM:
"pkgchk -n VRTSvxvm" fails with output as ERROR of chksum or mtime for vxvm-configuration 
files.

DESCRIPTION:
In solaris, patch is delivered and file attribute for changing vxvm configuration files 
needs to be having volatile "v" type in pkgmap file.
The file attribute was not volatile for vxvm-configuration files, hence the errors for 
few config files were reported by pkgchk command because of check-sum and modification-
time change.

RESOLUTION:
The code has been modified so as to change vxvm-config files' attribute to volatile.

* 3874736 (Tracking ID: 3874387)

SYMPTOM:
Disk header information is not logged to the syslog sometimes
even if the disk is missing and dg import fails.

DESCRIPTION:
In scenarios where disk has config copy enabled
and get active disk record, then disk header information was not getting
logged even though the disk is missing thereafter dg import fails.

RESOLUTION:
Dump the disk header information even if the disk record is
active and attached to the disk group.

* 3874961 (Tracking ID: 3871750)

SYMPTOM:
In parallel VxVM(Veritas Volume Manager) vxstat commands report abnormal 
disk IO statistic data. Like below:
# /usr/sbin/vxstat -g <dg name> -u k -dv -i 1 -S
...... 
dm  emc0_2480                       4294967210 4294962421           -382676k  
4294967.38 4294972.17
......

DESCRIPTION:
After VxVM IO statistics was optimized for huge CPUs and disks, there's a 
race condition when multiple vxstat commands are running to collect disk IO 
statistic data. It causes disk's latest IO statistic value become smaller 
than previous one, hence VxVM treates the value overflow so that abnormal 
large IO statistic value is printed.

RESOLUTION:
Code changes are done to eliminate such race condition.

* 3875230 (Tracking ID: 3554608)

SYMPTOM:
Mirroring a volume on 6.1 creates a larger plex than the original.

DESCRIPTION:
when mirror a volume, VXVM should ignore the disk alignment and use the DG(Disk 
Group) alignment. After VXVM got all the configuration from user command, it 
didn't check whether disk alignment will be used. Since disk alignment isn't 
ignored, the length of the mirror will be based on disk alignment. Hence the 
issue.

RESOLUTION:
Code changes have been made to use the DG alignment instead of disk alignment 
when mirror a volume.

* 3875564 (Tracking ID: 3875563)

SYMPTOM:
While dumping the disk header information, human readable timestamp was
not converted correctly from corresponding epoch time.

DESCRIPTION:
When disk group import fails if one of the disk is missing while
importing the disk group, it will dump the disk header information the syslog.
But, human readable time stamp was not getting converted correctly from
corresponding epoch time.

RESOLUTION:
Code changes done to dump disk header information correctly.

Patch ID: 6.1.1.000

* 3372831 (Tracking ID: 2573229)

SYMPTOM:
On RHEL6, the server panics when Dynamic Multi-Pathing (DMP) executes 
PERSISTENT RESERVE IN command with REPORT CAPABILITIES service action on 
powerpath controlled device. The following stack trace is displayed:

enqueue_entity at ffffffff81068f09
enqueue_task_fair at ffffffff81069384
enqueue_task at ffffffff81059216
activate_task at ffffffff81059253
pull_task at ffffffff81065401
load_balance_fair at ffffffff810657b7
thread_return at ffffffff81527d30
schedule_timeout at ffffffff815287b5
wait_for_common at ffffffff81528433
wait_for_completion at ffffffff8152854d
blk_execute_rq at ffffffff8126d9dc
emcp_scsi_cmd_ioctl at ffffffffa04920a2 [emcp]
PowerPlatformBottomDispatch at ffffffffa0492eb8 [emcp]
PowerSyncIoBottomDispatch at ffffffffa04930b8 [emcp]
PowerBottomDispatchPirp at ffffffffa049348c [emcp]
PowerDispatchX at ffffffffa049390d [emcp]
MpxSendScsiCmd at ffffffffa061853e [emcpmpx]
ClariionKLam_groupReserveRelease at ffffffffa061e495 [emcpmpx]
MpxDefaultRegister at ffffffffa061df0a [emcpmpx]
MpxTestPath at ffffffffa06227b5 [emcpmpx]
MpxExtraTry at ffffffffa06234ab [emcpmpx]
MpxTestDaemonCalloutGuts at ffffffffa062402f [emcpmpx]
MpxIodone at ffffffffa0624621 [emcpmpx]
MpxDispatchGuts at ffffffffa0625534 [emcpmpx]
MpxDispatch at ffffffffa06256a8 [emcpmpx]
PowerDispatchX at ffffffffa0493921 [emcp]
GpxDispatch at ffffffffa0644775 [emcpgpx]
PowerDispatchX at ffffffffa0493921 [emcp]
GpxDispatchDown at ffffffffa06447ae [emcpgpx]
VluDispatch at ffffffffa068b025 [emcpvlumd]
GpxDispatch at ffffffffa0644752 [emcpgpx]
PowerDispatchX at ffffffffa0493921 [emcp]
GpxDispatchDown at ffffffffa06447ae [emcpgpx]
XcryptDispatchGuts at ffffffffa0660b45 [emcpxcrypt]
XcryptDispatch at ffffffffa0660c09 [emcpxcrypt]
GpxDispatch at ffffffffa0644752 [emcpgpx]
PowerDispatchX at ffffffffa0493921 [emcp]
GpxDispatch at ffffffffa0644775 [emcpgpx]
PowerDispatchX at ffffffffa0493921 [emcp]
PowerSyncIoTopDispatch at ffffffffa04978b9 [emcp]
emcp_send_pirp at ffffffffa04979b9 [emcp]
emcp_pseudo_blk_ioctl at ffffffffa04982dc [emcp]
__blkdev_driver_ioctl at ffffffff8126f627
blkdev_ioctl at ffffffff8126faad
block_ioctl at ffffffff811c46cc
dmp_ioctl_by_bdev at ffffffffa074767b [vxdmp]
dmp_kernel_scsi_ioctl at ffffffffa0747982 [vxdmp]
dmp_scsi_ioctl at ffffffffa0786d42 [vxdmp]
dmp_send_scsireq at ffffffffa078770f [vxdmp]
dmp_do_scsi_gen at ffffffffa077d46b [vxdmp]
dmp_pr_check_aptpl at ffffffffa07834dd [vxdmp]
dmp_make_mp_node at ffffffffa0782c89 [vxdmp]
dmp_decode_add_disk at ffffffffa075164e [vxdmp]
dmp_decipher_instructions at ffffffffa07521c7 [vxdmp]
dmp_process_instruction_buffer at ffffffffa075244e [vxdmp]
dmp_reconfigure_db at ffffffffa076f40e [vxdmp]
gendmpioctl at ffffffffa0752a12 [vxdmp]
dmpioctl at ffffffffa0754615 [vxdmp]
dmp_ioctl at ffffffffa07784eb [vxdmp]
dmp_compat_ioctl at ffffffffa0778566 [vxdmp]
compat_blkdev_ioctl at ffffffff8128031d
compat_sys_ioctl at ffffffff811e0bfd
sysenter_dispatch at ffffffff81050c20

DESCRIPTION:
Dynamic Multi-Pathing (DMP) uses PERSISTENT RESERVE IN command with the REPORT
CAPABILITIES service action to discover target capabilities. On RHEL6, system
panics unexpectedly when Dynamic Multi-Pathing (DMP) executes PERSISTENT 
RESERVE IN command with REPORT CAPABILITIES service action on powerpath 
controlled device coming from EMC Clarion/VNX array. This bug has been reported 
to EMC powperpath engineering.

RESOLUTION:
The Dynamic Multi-Pathing (DMP) code is modified to execute PERSISTENT RESERVE 
IN command with the REPORT CAPABILITIES service action to discover target 
capabilities only on non-third party controlled devices.

* 3440232 (Tracking ID: 3408320)

SYMPTOM:
Thin reclamation fails for EMC 5875 arrays with the following message:
# vxdisk reclaim <disk> 
Reclaiming thin storage on: 
Disk <disk> : Reclaim Partially Done. Device Busy.

DESCRIPTION:
As a result of recent changes in EMC Microcode 5875, Thin Reclamation for EMC
5875 arrays fails because reclaim request length exceeds the maximum
"write_same" length supported by the array.

RESOLUTION:
The code has been modified to correctly set the maximum "write_same" length of
the array.

* 3455533 (Tracking ID: 3524376)

SYMPTOM:
Removed Patch ID from the VxVM Solaris 10 patch PSTAMP. 
old pstamp: "6.1.1.000-2014-03-30-150717-05"

DESCRIPTION:
Patch ID is used only in Solaris 10 platform. To make the PSTAMP consistent across platforms, Symantec has formulated a unique PSTAMP format for all stack products such as <patch-version>-<date>-<timestamp>.
For example: 6.1.1.000-2014-03-30-19.00.01

RESOLUTION:
To display the patch id installed on the machine, use the command "showrev -p | grep <pkgname>".

* 3457363 (Tracking ID: 3462171)

SYMPTOM:
When SCSI-3 Persistent Reservation command ioctls are issued on
non-SCSI devices, dmpnode gets disabled with the following messages in the
system log: 
[..]
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-3-0 dmp_scsi_ioctl:
devno=0x11700000002 ret=0x19
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-0-0 [Warn] SCSI error
opcode=0x5e returned rq_status=0x7 cdb_status=0x0 key=0x0 asc=0x0 ascq=0x0 on
path 279/0x2
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-3-1476 dmp_notify_events:
Total number of events = 1
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-3-0 dmp_pr_send_cmd failed
with transport error: uscsi_rqstatus = 7ret = -1 status = 0 on dev 279/0x2
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-0-112 [Warn] disabled path
279/0x0 belonging to the dmpnode 302/0x0 due to path failure
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-3-1476 dmp_notify_events:
Total number of events = 2
Mar 10 22:44:19 s40sb1 vxdmp: NOTICE: VxVM vxdmp V-5-0-111 [Warn] disabled
dmpnode 302/0x0
[..]

DESCRIPTION:
Non-SCSI devices do not support SCSI persistent reservation commands. Thus,
SCSI-3 persistent commands 'ioctls' on non-SCSI device fails with unsupported
error codes. Due to which, Dynamic Multipathing (DMP) ends up treating ioctl
failure as path error causing dmpnode to get disabled.

RESOLUTION:
The DMP code is modified such that SCSI-3 persistent reservation
commands are not sent on non-SCSI devices.

* 3470255 (Tracking ID: 2847520)

SYMPTOM:
Users can create linked volume using 'vxsnap addmir ... mirdg=<dg> mirvol=<vol>' CLI. The target volume then can be used to create snapshot using 'vxsnap make source=<src-vol> snap=<tgt-vol> snapdg=<tgt-dg>' CLI. When such linked volume is created in the clustered environment and the resize operation is executed on the volume, it can cause corruption of target volume. So, if such a target volume is used to create snapshot, it would be corrupted as well. If the linked volume had a VxFS filesystem created on it and the user tries to mount the snapshot created using such a corrupted target volume, it might fail with the following error message:

UX:vxfs mount: ERROR: V-3-26883: fsck log replay exits with 12
UX:vxfs mount: ERROR: V-3-26881: Cannot be mounted until it has been cleaned by
fsck. Please run "fsck -V vxfs -y /dev/vx/dsk/snapdg/snapvol" before mounting.

DESCRIPTION:
When a linked volume is resized, maps are updated to keep track of regions inconsistent between the source volume and the target volume for the grown/shrunk region. Such update of map should ideally happen only from one node/machine in the cluster. Due to some problems, the map was getting updated concurrently from two different nodes/machine causing inconsistent maps. When this map was used to synchronize the target volume, it would lead to data on target volume not getting synchronized correctly and thus led to corrupted target volume.

RESOLUTION:
The code is modified to make sure that the map is updated only from one node if the volume is shared.

* 3470257 (Tracking ID: 3372724)

SYMPTOM:
When the user installs VxVM, the system panics with the following warnings:
vxdmp: WARNING: VxVM vxdmp V-5-0-216 mod_install returned 6 vxspec V-5-0-0 
vxspec: vxio not loaded. Aborting vxspec load

DESCRIPTION:
When the user installs VxVM, if the DMP module fails to load, the cleanup procedure fails to reset the statistics timer (which is set while loading). As a result, the timer dereferences a function pointer which is already unloaded. Thereby, the system panics.

RESOLUTION:
The code is modified to perform a complete cleanup when DMP fails to load.

* 3470260 (Tracking ID: 3415188)

SYMPTOM:
Filesystem/IO hangs during data replication with Symantec Replication Option (VVR) with the following stack trace:
schedule()
volsync_wait() 
volopobjenter()
vol_object_ioctl() 
voliod_ioctl() 
volsioctl_real()
vols_ioctl() 
vols_compat_ioctl()
compat_sys_ioctl() 
sysenter_dispatch()

DESCRIPTION:
One of the structures of Symantec Replication Option that are associated with Storage Replicator Log (SRL) can become invalid because of improper locking mechanism in code that leads to IO/file system hang.

RESOLUTION:
The code is changed to have appropriate locks to protect the code.

* 3470262 (Tracking ID: 3077582)

SYMPTOM:
A Veritas Volume Manager (VxVM) volume may become inaccessible causing the read/write operations to fail with the following error:
# dd if=/dev/vx/dsk/<dg>/<volume> of=/dev/null count=10
dd read error: No such device
0+0 records in
0+0 records out

DESCRIPTION:
If I/Os to the disks timeout due to some hardware failures like weak Storage Area Network (SAN) cable link or Host Bus Adapter (HBA) failure, VxVM assumes that the disk is faulty or slow and it sets the failio flag on the disk. Due to this flag, all the subsequent I/Os fail with the ANo such deviceA error.

RESOLUTION:
The code is modified such that vxdisk now provides a way to clear the failio flag. To check whether the failio flag is set on the disks, use the vxkprint(1M) utility (under /etc/vx/diag.d). To reset the failio flag, execute the Avxdisk set <disk_name> failio=offA command, or deport and import the disk group that holds these disks.

* 3470265 (Tracking ID: 3326964)

SYMPTOM:
VxVM () hangs in CVM environment in presence of Fast Mirror Resync FMR)/Flashsnap operations with the following stack trace:
voldco_cvm_serialize()
voldco_serialize()
voldco_handle_dco_error()
voldco_mapor_sio_done()
voliod_iohandle()
voliod_loop()
child_rip()
voliod_loop()
child_rip()

DESCRIPTION:
During split brain testing in presence of FMR activities, when errors occur on the Data change object (DCO), the DCO error handling code sets up a flag due to which the same error gets set again in its handler. Consequently the VxVM Staged I/O (SIO) loop around the same code and causes the hang.

RESOLUTION:
The code is changed to appropriately handle the scenario.

* 3470270 (Tracking ID: 3403390)

SYMPTOM:
The linked-to volume goes into NEEDSYNC state if the system crashes while I/Os are ongoing on the linked-from volume or the linked-from volume is open by any application.

DESCRIPTION:
In this case, when the system comes up, volume recovery is performed on the linked-from volume which also recovers the linked-to volumes associated to it. But still, the linked-to volumes were shown in NEEDSYNC state even though no recovery was required.

RESOLUTION:
The code is modified to prevent linked-to volume from going into NEEDSYNC
state in the above mentioned scenarios and hence no recovery is required for the linked-to volume.

* 3470272 (Tracking ID: 3385753)

SYMPTOM:
Replication to the Disaster Recovery (DR) site hangs even though Replication 
links (Rlinks) are in the connected state.

DESCRIPTION:
Based on Network conditions under User Datagram Protocol (UDP), Symantec 
Replication Option (Veritas Volume Replicator (VVR) has its own
flow control mechanism to control the flow/amount of data to be sent over the 
network. Under error prone network conditions which cause
timeouts, VVR's flow control values become invalid, resulting in replication 
hang.

RESOLUTION:
The code is modified to ensure valid values for the flow control even under 
error prone network conditions.

* 3470274 (Tracking ID: 3373208)

SYMPTOM:
Veritas Dynamic Multipathing (DMP) wrongly sends the SCSI PR OUT command with Activate Persist Through Power Loss (APTPL) bit with value as A0A to array that supports the APTPL capabilities.

DESCRIPTION:
DMP correctly recognizes the APTPL bit settings and stores them in the database. DMP verifies this information before sending the SCSI PR OUT command so that the APTPL bit can be set appropriately in the command. But, due to issue in the code, DMP was not handling the node's device number properly. Due to which, the APTPL bit was getting incorrectly set in the SCSI PR OUT command.

RESOLUTION:
The code is modified to handle the node's device number properly in the DMP SCSI command code path.

* 3470275 (Tracking ID: 3417044)

SYMPTOM:
The system becomes unresponsive while creating Veritas Volume Replication (VVR) 
TCP connection. The vxiod kernel thread reports the following stack trace:

mt_pause_trigger() 
wait_for_lock() 
spinlock_usav() 
kfree() 
t_kfree() 
kmsg_sys_free() 
nmcom_connect() 
vol_rp_connect() 
vol_rp_connect_start() 
voliod_iohandle() 
voliod_loop()

DESCRIPTION:
When multiple TCP connections are configured, some of these connections are 
still in the active state and the connection request process function attempts 
to free a memory block. If this block is already freed by a previous connection, 
then the kernel thread may become unresponsive on a HPUX platform.

RESOLUTION:
The code is modified to resolve the issue of freeing a memory block which is 
already freed by another connection.

* 3470279 (Tracking ID: 3300418)

SYMPTOM:
VxVM volume operations on shared volumes cause unnecessary read I/Os on the
disks that have both configuration copy and log copy disabled on slaves.

DESCRIPTION:
The unnecessary disk read I/Os are generated on slaves when VxVM is refreshing
the private region information into memory during VxVM transaction. In fact,
there is no need to refresh the private region information if the disk already
has disabled the configuration copy and log copy.

RESOLUTION:
The code has been changed to skip the refreshing if both configuration copy and
log copy are already disabled on master and slaves.

* 3470282 (Tracking ID: 3374200)

SYMPTOM:
A Linux-based system panic or exceptional IO delay is observed on the volume when a snapshot operation is executed. In case of a panic, the following stack trace is reported:
spin_lock_irqsave() 
volpage_getlist_internal()  
volpage_getlist()
voldco_needupdate_instant()  
volfmr_needupdate_instant()

DESCRIPTION:
Volume Manager uses a system wide pool of memory to manage IO and snapshot operations (paging module). The default size is 6MB on Linux, which suffices for 1 TB volume. For snapshot operations, the default size is increased dynamically without considering the IO performed by other volumes. Thus, during a snapshot operation, contention on the paging module occurs leading to delays in IO handling or sometimes panics.

RESOLUTION:
The code is modified such that the default paging module size on Linux is increased to 64M. However, if you still face the issue then you can   manually increase the paging module size using the volpagemod_max_memsz tunable. Or, to avoid manual intervention, To avoid contention during the snapshot operation, the paging module size is increased considering the other online volumes in the system.

* 3470287 (Tracking ID: 3271315)

SYMPTOM:
The vxdiskunsetup command with the shred option fails to shred sliced or simple disks on Solaris X86 platform.
Errors of the following format can be seen:

VxVM vxdisk ERROR V-5-1-16576 disk_shred: Shred failed one or more writes
VxVM vxdisk ERROR V-5-1-16658 disk_shred: Shred wrote 1 pages, of which 1 
encountered errors

DESCRIPTION:
The error occurs as the check for 'disk size' in the vxdiskunsetup command returns incorrect value for sliced or simple disks on Solaris x86.

RESOLUTION:
The code is modified to correctly check for disk size of simple and sliced disks.

* 3470290 (Tracking ID: 2999871)

SYMPTOM:
The vxinstall(1M) command gets into a hung state when it is invoked
through Secure Shell (SSH) remote execution.

DESCRIPTION:
The vxconfigd process which starts from the vxinstall script fails
to close the inherited file descriptors, causing the vxinstall to enter the hung
state.

RESOLUTION:
The code is modified to handle the inherited file descriptors for
the vxconfigd process.

* 3470300 (Tracking ID: 3340923)

SYMPTOM:
The following kind of messages are seen in system log corresponding to
the unavailable asymmetric access state paths.

..
..
kernel: [859680.551729] end_request: I/O error, dev
sdc, sector 44515143296
kernel: [859680.552219] VxVM vxdmp V-5-0-112 disabled
path 8/0x20 belonging to the dmpnode 201/0x40 due to path failure
kernel: [859690.554947] VxVM vxdmp V-5-0-1652
dmp_alua_update_alua_info: change in aas detected for node=8/32 old_aas: 0
new_aas: 3
kernel: [859690.554980] VxVM vxdmp V-5-0-148 enabled
path 8/0x20 belonging to the dmpnode 201/0x40
..
..

DESCRIPTION:
The paths with unavailable asymmetric access state do not service I/O. Hence by design, DMP tries to return path failure for such paths. This avoids such paths getting selected for I/Os. But due to an issue, DMP returns path okay and causes path to be enabled back.

RESOLUTION:
The code is modified to fix this issue.

* 3470301 (Tracking ID: 2812161)

SYMPTOM:
In a VVR environment, after the Rlink is detached, the vxconfigd(1M) daemon on 
the secondary host may hang. The following stack trace is observed:
cv_wait
delay_common
delay
vol_rv_service_message_start
voliod_iohandle
voliod_loop
...

DESCRIPTION:
There is a race condition if there is a node crash on the primary site of VVR 
and if any subsequent Rlink is detached. The vxconfigd(1M) daemon on the 
secondary site may hang, because it is unable to clear the I/Os received from 
the primary site.

RESOLUTION:
The code is modified to resolve the race condition.

* 3470303 (Tracking ID: 3314647)

SYMPTOM:
The vxcdsconvert(1M) command fails with following options when disk group (DG) contains multiple volumes:

/etc/vx/bin/vxcdsconvert -o novolstop -g <DGNAME> group move_subdisks_ok=yes 
evac_subdisks_ok=yes

relayout: ERROR! Plex column offset is not strictly increasing for column/plex
0/<VOLUME NAME>

DESCRIPTION:
When the vxcdsconvert(1M) command is invoked with "group" option, it converts non-cds disks to Cross-Platform-Data Sharing(CDS) formatted disks. The command will align and resize subdisks within the DG to make sure alignment of all volumes is 8k and finally set CDS flag on the DG.

The command may need to relocate subdisks when it formats the disks with CDS format. To do this, it uses some global variables which indicate the subdisks from volume which need to be re-analyzed. To align all volumes at 8K boundaries, same global variables are used and since these global variables were already set during disk initialization, stale values were used during volume alignment which causes the error.

RESOLUTION:
The code is modified so that before volumes are considered for 8K alignment, the global variables, which indicate whether some subdisks need to be reanalyzed for alignment or not, are reset.

* 3470322 (Tracking ID: 3399323)

SYMPTOM:
The reconfiguration of Dynamic Multipathing (DMP) database fails with the below error: VxVM vxconfigd DEBUG  V-5-1-0 dmp_do_reconfig: DMP_RECONFIGURE_DB failed: 2

DESCRIPTION:
As part of the DMP database reconfiguration process, controller information from DMP user-land database is not removed even though it is removed from DMP kernel database. This creates inconsistency between the user-land and kernel-land DMP database. Because of this, subsequent DMP reconfiguration fails with above error.

RESOLUTION:
The code changes have been made to properly remove the controller information from the user-land DMP database.

* 3470345 (Tracking ID: 3281004)

SYMPTOM:
For DMP minimum queue I/O policy with large number of CPUs, the following 
issues are observed since the VxVM 5.1 SP1 release: 
1. CPU usage is high. 
2. I/O throughput is down if there are many concurrent I/Os.

DESCRIPTION:
The earlier minimum queue I/O policy is used to consider the host controller 
I/O load to select the least loaded path. For VxVM 5.1 SP1 version, an addition 
was made to consider the I/O load of the underlying paths of the selected host 
based controllers. However, this resulted in the performance issues, as there 
were lock contentions with the I/O processing functions and the DMP statistics 
daemon.

RESOLUTION:
The code is modified such that the host controller paths I/O load is not 
considered to avoid the lock contention.

* 3470347 (Tracking ID: 3444765)

SYMPTOM:
In Cluster Volume Manager (CVM), shared volume recovery may take long time for large configurations.

DESCRIPTION:
In the CVM environment, the volume recovery operation involves following tasks:
1. Unconditional Data Change Object (DCO) volume recovery. 
2. Recovery using the vxvol noderecover(1M) command. 

But the DCO volume recovery is done serially and the noderecover(1M) command is executed separately for each volume which needs recovery. Therefore, the complete recovery operation can take longer time.

RESOLUTION:
The code changes are done to recover DCO volume only if required and the recovery of multiple DCO volumes will be done in parallel. Similarly, single vxvol noderecover(1M) command will be issued for multiple volumes.

* 3470350 (Tracking ID: 3437852)

SYMPTOM:
The system panics when  Symantec Replicator Option goes to PASSTHRU
mode. Panic stack trace might look like:

vol_rp_halt()
vol_rp_state_trans()
vol_rv_replica_reconfigure()
vol_rv_error_handle()
vol_rv_errorhandler_callback()
vol_klog_start()
voliod_iohandle()
voliod_loop()

DESCRIPTION:
When Storage Replicator Log (SRL) gets faulted for any reason, VVR
goes into the PASSTHRU Mode. At this time, a few updates are erroneously freed.
When these updates are accessed during the correct processing, access to these
updates results in panic as the updates are already freed.

RESOLUTION:
The code changes have been made not to free the updates erroneously.

* 3470352 (Tracking ID: 3450758)

SYMPTOM:
The slave node panics when it tries to join the cluster with the following stack:
bad_area_nosemaphore()
page_fault()
vol_plex_iogen()
volobject_iogen()
vol_cvol_volobject_iogen()
vol_cvol_init_iogen()
vol_cache_linkdone()
cvm_msg_cfg_end()
vol_kmsg_request_receive()
vol_kmsg_receiver()
kernel_thread()

DESCRIPTION:
The panic happens when the node generates a Staged I/O (SIO) for the plex object in the process of validating the cache object (parent) and plex object (child) associations. Some of the fields of the plex object which have not been populated are accessed as part of the SIO generation. This access to NULL fields leads to panic.

RESOLUTION:
The code changes have been made to avoid accessing those NULL fields of plex object while the slave node joins the cluster.

* 3470353 (Tracking ID: 3236772)

SYMPTOM:
Replication with heavy I/O loads on primary sites result in the following errors
on the secondary site: 
1. "Transaction aborted waiting for io drain"
and/or
2. "vradmin ERROR Lost connection to host"

DESCRIPTION:
A deadlock between 'transaction' and messages delivered to the secondary site
results in repeated timeouts of transactions on the secondary site. These
repeated transaction timeouts cause transaction failures and/or session timeouts
between primary and secondary sites.

RESOLUTION:
The code is modified to resolve the deadlock condition.

* 3470354 (Tracking ID: 3446415)

SYMPTOM:
When the file system shrink operation is performed on FileStore, a
different pool may get added to the file system
Example:

# fs create mirrored <FS> 8g 2 pool01 protection=disk 

# fs list
FS                        STATUS       SIZE    LAYOUT              MIRRORS   
COLUMNS   USE%  NFS SHARED  CIFS SHARED  SECONDARY TIER  POOL LIST
========================= ======       ====    ======              =======   
=======   ====  ==========  ===========  ==============  =========
<FS>                     online      8.00G    mirrored            2         - 
         
1%     no          no           no           pool01


# fs shrinkto primary <FS> 4g

# fs list
FS                        STATUS       SIZE    LAYOUT              MIRRORS   
COLUMNS   USE%  NFS SHARED  CIFS SHARED  SECONDARY TIER  POOL LIST
========================= ======       ====    ======              =======   
=======   ====  ==========  ===========  ==============  =============
<FS>                 online      4.00G    mirrored            2         - 
         
2%     no          no           no           pool01, pool02

DESCRIPTION:
While performing shrink operation on volume, associated DCO volume gets
recreated. But during this operation, specified site tags on command line are
not taken into consideration. Thus, new DCO volumes may get created on the disk
that has different site tag. Due to this, different pools are added to file
system on FileStore.

RESOLUTION:
The code is modified to properly allocate DCO volume within the
specified pool of the disk during the volume shrink operation.

* 3470382 (Tracking ID: 3368361)

SYMPTOM:
When site consistency is configured within a private disk group and Cluster
Volume Manager (CVM) is up, the reattach operation of a detached site fails.

DESCRIPTION:
When you try to reattach the detached site configured in a private disk-group
with CVM up on that node, the reattach operation fails with
the following error

"Disk (disk_name) do not have connectivity from one or more cluster nodes". 

The reattach operation fails because you are not checking the shared attribute
of the disk group when you apply the disk connectivity
check for a private disk group.

RESOLUTION:
The code is modified to make the disk connectivity check explicit for a shared
disk group by checking the shared attribute of a disk group.

* 3470383 (Tracking ID: 3455460)

SYMPTOM:
The vxfmrshowmap and verify_dco_header utilities fail with the following error 
message:
vxfmrshowmap:
VxVM  ERROR V-5-1-15443 seek to <offset-address> for <device-name> FAILED:Error 
0

verify_dco_header:
Cannot lseek to offset:<offset-address>

DESCRIPTION:
The issue occurs because the large offsets are not handled properly while 
seeking using 'lseek', as a part of the vxfmrshowmap and verify_dco_header 
utilities.

RESOLUTION:
The code is modified to properly handle large offsets as a part of the 
vxfmrhsowmap and verify_dco_header utilities.

* 3470384 (Tracking ID: 3440790)

SYMPTOM:
Sometimes the vxassist(1M) command with parameter mirror and the vxplex(1M) command  with parameter att hang. The hang is observed by looking at the vxtask list output which shows no progress of the tasks.

DESCRIPTION:
Sometimes the vxassist(1M) command with parameter mirror and the  vxplex command(1M) with parameter att result into hang, showing no progress of operation in the vxtask list o/p. This operation requires a kernel memory to copy data from one plex to another and this memory is allocated from a dedicated Veritas Volume Manager (VxVM) memory pool. Due to some problems in calculating free memory in the pool, the task forever waits for memory even though enough memory is available in pool.

RESOLUTION:
The code is modified to properly compute the free memory available in VxVM's memory pool use for these operations.

* 3470385 (Tracking ID: 3373142)

SYMPTOM:
Manual pages for vxedit and vxassist do not contain details about updated
behavior of these commands.

DESCRIPTION:
1. vxedit manual page
On this page it explains that if the reserve flag is set 
for a disk, then vxassist will not allocate a data subdisk on that disk unless
the disk is specified on the vxassist command line. But Data Change Object (DCO)
volume creation by vxassist or vxsnap command will not honor the reserved flag.

2. vxassist manual page
DCO allocation policy has been updated starting from 6.0. The allocation policy
may not succeed if there is insufficient disk space. The vxassist command then
uses available space on the remaining disks of the disk group. This may prevent
certain disk group from splitting or moving if the DCO plexes cannot accompany
their parent data volume.

RESOLUTION:
The manual pages for both commands have been updated to reflect the new
behavioral changes.

* 3475525 (Tracking ID: 3475521)

SYMPTOM:
During a system reboot, the following error message is displayed on the console:
es_rcm.pl:scripting protocol error

DESCRIPTION:
For printing message, Solaris RCM script requires to follow syntax of 'name=value' pair format. However, the print message in the RCM script does not follow this syntax. As a result, when the script is invoked, it returns an error message

RESOLUTION:
The code is modified to rectify the syntax of the print message in the RCM script.

* 3490147 (Tracking ID: 3485907)

SYMPTOM:
Panic occurs in the I/O code path. The following stack trace is observed:
...
volkcontext_process()
volkiostart()
vxiostrategy()
...

or
...
voliod_iohandle()
voliod_loop()
...

DESCRIPTION:
When the snapshot reattach operation is in progress on a volume, the metadata 
of the snapshot get's updated. If any parallel I/O during this operation gets 
incorrect state of
Metadata, this leads to IO's of zero size being created. This leads to system 
panic.

RESOLUTION:
The code is modified to avoid the generation of I/Os of zero length, on volumes 
which are under the snapshot operations.

* 3506675 (Tracking ID: 3441356)

SYMPTOM:
Pre-check of the upgrade_start.sh script fails with the following error: ERROR
"VxVM vxprint ERROR V-5-1-15324 Specify a disk group with -g <diskgroup>"

DESCRIPTION:
Current logic in upgrade_start.sh expects "RESERVED_DG_BOOT" to be set to
"nodg". This is valid only for releases older than 5.x.
In the case of newer releases, "RESERVED_DG_BOOT" is set to either "bootdg" or
<name_of_boot_dg>.

RESOLUTION:
The code is modified to change the logic in the upgrade_start.sh script.

* 3506676 (Tracking ID: 3435475)

SYMPTOM:
The vxcdsconvert(1M) conversion process gets aborted for a thin LUN  formatted
as a simple disk with Extensible Firmware Interface (EFI) format with the
following error: VxVM vxcdsconvert ERROR V-5-2-2767 <da_name>: Unable to add the
disk back to the disk group

DESCRIPTION:
The vxcdsconvert(1M) command evacuates sub-disks to some other disks within DG
before initializing non-CDS disks with CDS format. Subdisks residing on thin
reclaimable disks are marked pending to be reclaimed after having been evacuated
to other disks. When such a disk is removed from DG, since its subdisk is
pending reclamation, subdisk records still point to the same disk. For EFI
formatted disks the public region length of non-CDS disk is greater than that of
CDS disks. When this disk is converted from non-CDS format to CDS format and is
added back to DG, vxconfigd thinks the subdisk residing on the disk lies beyond
the public region space of the converted CDS disk and it fails the conversion.

RESOLUTION:
The code is modified to not check sub-disk boundaries for sub-disks pending
RECLAMATION as these records will be deleted eventually and are stale.

* 3506679 (Tracking ID: 3435225)

SYMPTOM:
In a given CVR setup, rebooting the master node causes one of the slaves to
panic with following stack:

pse_sleep_thread
vol_rwsleep_rdlock
vol_kmsg_send_common
vol_kmsg_send_prealloc
cvm_obj_sendmsg_prealloc
vol_rv_async_done
volkcontext_process
voldiskiodone

DESCRIPTION:
The issue is triggered by one of the code paths sleeping in interrupt context.

RESOLUTION:
The code is modified so that sleep is not invoked in interrupt context.

* 3506707 (Tracking ID: 3400504)

SYMPTOM:
While disabling the host side HBA port, extended attributes of some devices are
not present anymore. This happens even when there is a redundant controller
present on the host which is in enabled state.

An example output is shown below where the 'srdf' attribute of an EMC device
(which has multiple paths through multiple controllers) gets affected.

Before the port is disabled-
# vxdisk -e list emc1_4028
emc1_4028    auto:cdsdisk   emc1_4028    dg21        online      
c6t5000097208191154d112s2 srdf-r1

After the port is disabled-
# vxdisk -e list emc1_4028
emc1_4028    auto:cdsdisk   emc1_4028    dg21        online      
c6t5000097208191154d112s2 -

DESCRIPTION:
The code which prints the extended attributes used to print the attributes of
the first path in the list of all paths. If the first path belongs to the
controller which is disabled, its attributes will be empty.

RESOLUTION:
The code is modified to look for the path in enabled state among all the paths
and then print the attributes of such path.

* 3506709 (Tracking ID: 3259732)

SYMPTOM:
In a Clustered Volume Replicator (CVR) environment, if the SRL size grows and if
it is followed by a slave node leaving and then re-joining the cluster then
rlink is detached.

DESCRIPTION:
After the slave re-joins the cluster, it does not correctly receive and process
the SRL resize information received from the master. This means that application
writes initiated on this slave may corrupt the SRL causing rlink to detach.

RESOLUTION:
The code is modified so that when a slave joins the cluster, make sure that the
SRL resize related information is correctly received and processed by the slave.

* 3531906 (Tracking ID: 3526500)

SYMPTOM:
Disk IO failures occur with DMP IO timeout error messages when DMP (Dynamic Multi-pathing) IO statistics daemon is not running. Following are the timeout error messages:

VxVM vxdmp V-5-3-0 I/O failed on path 65/0x40 after 1 retries for disk 201/0x70
VxVM vxdmp V-5-3-0 Reached DMP Threshold IO TimeOut (100 secs) I/O with start 
3e861909fa0 and end 3e86190a388 time
VxVM vxdmp V-5-0-0 [Error] i/o error occurred (errno=0x206) on dmpnode 201/0x70

DESCRIPTION:
When IO is submitted to DMP, it sets the start time on the IO buffer. The value of the start time depends on whether the DMP IO statistics daemon is running or not. When the IO is returned as error from SCSI to DMP, instead of retrying the IO on alternate paths, DMP failed that IO with 300 seconds timeout error, but the IO has elapsed only few milliseconds in its execution. The miscalculation of DMP timeout happens only when DMP IO statistics daemon is not running.

RESOLUTION:
The code is modified to calculate appropriate DMP IO timeout value when DMP IO statistics demon is not running.

* 3536289 (Tracking ID: 3492062)

SYMPTOM:
Dynamic Multi-Pathing (DMP) fails to get page 0x83 LUN identifier for EMC symmetrix LUNS and continuously logs the following error message: 
AVxVM vxdmp V-5-3-1984 dmp_restore_callback: devid could not be extracted from pg 0x83 on pathA

DESCRIPTION:
If DMP fails to get page 0x83 LUN identifier for EMC symmetrix LUNS during discovery, then DMP should set a device identifier unsupported flag on the corresponding DMP node. Currently, there is no code to set this flag and hence, the restore daemon identifies such devices as device identifier mismatch case and logs error messages.

RESOLUTION:
The code is modified to mark device identifier unsupported flag if it could not be extracted during discovery process so that the restore daemon does not pick it up for device identifier mismatch case. Also, the message is converted from NOTE message to LOG message type.

* 3540122 (Tracking ID: 3482026)

SYMPTOM:
The vxattachd(1M) daemon reattaches plexes of manually detached site.

DESCRIPTION:
The vxattachd daemon reattaches plexes for a manually detached site that is the site with state as OFFLINE. As there was no check to differentiate between a manually detach site and the site that was detached due to IO failure. Hence, the vxattachd(1M) daemon brings the plexes online for manually detached site also.

RESOLUTION:
The code is modified to differentiate between manually detached site and the site detached due to IO failure.

* 3543944 (Tracking ID: 3520991)

SYMPTOM:
The vxconfigd(1M) daemon dumps core due to memory corruption and displays the following stack trace:

1. 

malloc_y()
malloc_common 
misc.xalloc()
dll_iter_next()
ddl_claim_single_disk()
ddl_thread_claim_disk()
ddl_task_start()
volddl_thread_start()

OR

2. 

free_y()
free_common()
ddl_name_value_api.nv_free
ddl_vendor_claim_device()
ddl_claim_single_disk()
ddl_thread_claim_disk()
ddl_task_start() at
volddl_thread_start()

DESCRIPTION:
Device Discovery Layer (DDL) maintains a bitmap data structure for the Array Support Libraries (ASLs) present on hosts. If the number of Array Support Libraries (ASLs) are greater than or equal to 64, then, while setting the 64th bit in the bitmap data structure associated with the ASLs, DDL performs an out of bound write operation. This memory corruption causes either vxconfigd daemon to dump core or other unexpected issues.

RESOLUTION:
The Device Discovery Layer (DDL) code is modified to fix this issue.

* 3547093 (Tracking ID: 2422535)

SYMPTOM:
On Solaris, the vxrelocd progress parameter is hard coded in the vxvm-recover
binary and after installing VxVM patches or latest packages, the specific option
is lost.

DESCRIPTION:
On Solaris, you can modify the vxrelocd parameters in the vxvm-recover binary.
But after installing Veritas Volume Manager (VxVM) patch or latest packages, the
new vxvm-recover binary overwrites the modified vxvm-recover. As a result, the
specific parameter is lost.

RESOLUTION:
On Solaris, a configure file (/etc/vx/vxvm-recover.conf) is added to hold the
modified parameter.

Patch ID: 6.1.0.100

* 3424815 (Tracking ID: 3424704)

SYMPTOM:
vxbootsetup command fails while using localized messages with below error:
VxVM vxbootsetup ERROR V-5-2-5651 <garbage value>

DESCRIPTION:
The issue occurs because while comparing the output of 'vxsctl mode' command, it is not converted in English language. The output 
of the command comes in localized form which leads to the failure of vxbootsetup.

RESOLUTION:
Code changes have been made to convert the output of 'vxdctl mode' command in English before comparing.

* 3440980 (Tracking ID: 3107699)

SYMPTOM:
VxDMP causes system panic after a shutdown or reboot and displays
the following stack trace:
mutex_enter() 
volinfo_ioct()
volsioctl_real()
cdev_ioctl()
dmp_signal_vold()
dmp_throttle_paths()
dmp_process_stats()
dmp_daemons_loop()
thread_start()
OR
panicsys()
vpanic_common()
panic+0x1c()
mutex_enter()
cdev_ioctl()
dmp_signal_vold()
dmp_check_path_state()
dmp_restore_callback()
dmp_process_scsireq()
dmp_daemons()
thread_start()

DESCRIPTION:
In a special scenario of system shutdown/reboot, the DMP
(Dynamic MultiPathing) I/O statistic daemon tries to call the ioctl functions
in VXIO module which is being unloaded and this causes system panic.

RESOLUTION:
The code is modified to stop the DMP I/O statistic daemon before
system shutdown/reboot. Also added a code change to avoid to other probe to vxio
devices during shutdown.

* 3444900 (Tracking ID: 3399131)

SYMPTOM:
The following command fails with an error for a path managed by Third Party
Driver (TPD) which co-exists with DMP.
# vxdmpadm -f disable path=<path name> 
VxVM vxdmpadm ERROR V-5-1-11771 Operation not supported

DESCRIPTION:
The Third Party Drivers manage the devices with or without the co-existence of
Dynamic Multi Pathing driver. Disabling the paths managed by a third party
driver which does not co-exist with DMP is not supported. But due to bug in the
code, disabling the paths managed by a third party driver which co-exists with
DMP also fails. The same flags are set for all third party driver devices.

RESOLUTION:
The code has been modified to block this command only for the third party
drivers which cannot co-exist with DMP.

* 3445233 (Tracking ID: 3339195)

SYMPTOM:
While running vxdiskadm following error message is observed.
 "/usr/lib/vxvm/voladm.d/bin/exclude.do: 
syntax error at line 103: `CMD=$' unexpected"

Volume Manager Device Operations
Menu: VolumeManager/Disk/ExcludeDevices

 1      Suppress all paths through a controller from VxVM's view
 2      Suppress a path from VxVM's view
 3      Suppress disks from VxVM's view by specifying a VID:PID combination
 4      Suppress all paths to a disk
 5      Prevent multipathing of all disks on a controller by VxVM
 6      Prevent multipathing of a disk by VxVM
 7      Prevent multipathing of disks by specifying a VID:PID combination
 8      List currently suppressed devices

 ?      Display help about menu
 ??     Display help about the menuing system
 q      Exit from menus

Select an operation to perform: 4

/usr/lib/vxvm/voladm.d/bin/exclude.do: syntax error at line 103: `CMD=$' 
unexpected

DESCRIPTION:
Script fails as legacy backtick option "`CMD`" to store command in a variable is not used.

RESOLUTION:
Code changes are made to use correct syntax by putting required backticks.

* 3445234 (Tracking ID: 3358904)

SYMPTOM:
System panics with following stack:

dmp_alua_get_owner_state()
dmp_alua_get_path_state()
dmp_get_path_state()
dmp_get_enabled_ctlrs()
dmp_info_ioctl()
gendmpioctl()
dmpioctl()
vol_dmp_ktok_ioctl()
dmp_get_enabled_cntrls()
vx_dmp_config_ioctl()
quiescesio_start()
voliod_iohandle()
voliod_loop()
kernel_thread()

DESCRIPTION:
System running with Asymmetric Logical Unit Access (ALUA) LUNs sometimes panics
during path fault scenarios. This happens due to possible NULL pointer
access in some of cases due to bug in the code .

RESOLUTION:
Code changes have been made to fix the bug.

* 3445249 (Tracking ID: 3344796)

SYMPTOM:
shared disk group import fails. I/O failure messages with reservation conflict
seen in system log..

..
..
Tue Oct 22 03:40:54.071: I/O error occurred (errno=0x5) on Dmpnode ams_23000_60 
Tue Oct 22 03:40:54.160: I/O error occurred on Path c3t50060E801025BEE0d12s2 
belonging to Dmpnode ams_23000_61
Tue Oct 22 03:40:54.161: Unmarked as ioerr Path c3t50060E801025BEE0d12s2 belonging 
to Dmpnode ams_23000_61
Tue Oct 22 03:40:54.161: I/O analysis done as DMP_PATH_OKAY on Path 
c3t50060E801025BEE0d12s2 belonging to Dmpnode ams_23000_61
Tue Oct 22 03:40:54.161: I/O retry(1) on Path c3t50060E801025BEE0d12s2 belonging 
to Dmpnode ams_23000_61
Tue Oct 22 03:40:54.461: SCSI error occurred on Path c3t50060E801025BEE0d12s2: 
opcode=0x2a reported reservation conflict (status=0x18, key=0x0, asc=0x0, 
ascq=0x0) 
Tue Oct 22 03:40:54.461: I/O analysis done as DMP_RSV_CONFLICT_ERR on Path 
c3t50060E801025BEE0d12s2 belonging to Dmpnode ams_23000_61
..
..

DESCRIPTION:
From I/O domains DMP metanode is exported to LDOM guest as virtual device. On this virtual device when any SCSI-3 Persistent 
Reservation(PR)command is issued then DMP at I/O domain layer catches it and takes appropriate action. This was not working as expected 
causing missing keys from some of paths at I/O domain layer. Hence I/O routed from unregistered path failing with reservation conflict.

RESOLUTION:
Made code changes to fix the same.

* 3445268 (Tracking ID: 3422504)

SYMPTOM:
path disable/enable messages seen in system log of LDOM guest: 

..
Sat Jan 25 11:20:29.054: Disabled Path c2d2s2 belonging to Dmpnode
hitachi_vsp0_1986 due to path failure
Sat Jan 25 11:20:33.053: SCSI error occurred on Path c2d1s2: opcode=0x5f
reported unit attention (status=0x2, key=0x6, asc=0x2a, ascq=0x4) reservations
released
Sat Jan 25 11:20:33.536: Enabled Path c2d2s2 belonging to Dmpnode 
hitachi_vsp0_1986
..

DESCRIPTION:
In case of LDOMs, DMP(Veritas Dynamic Multipathing) routes SCSI commands using ioctl interface to  underlaying SCSI device. In some specific 
scenario, this interface was making incorrect decision causing path to get disabled. This gets enabled back subsequently.

RESOLUTION:
code changes were done in DMP to fix issue.

* 3445991 (Tracking ID: 3421326)

SYMPTOM:
DMP(Veritas Dynamic Multipathing) keeps on logging 'copyin failure messages' in system log repeatedly 

..
Jan 24 00:53:34 s5120sb0 vxdmp: NOTICE: VxVM vxdmp V-5-3-0 dmp_handler_pgr_out:
uscsi_cdbcopyin failed err = 14
..

DESCRIPTION:
Corresponding log message was kept at default log level. In some cases, it is expected that 'copyin' would fail.

RESOLUTION:
Log level of message has been bumped.

* 3445992 (Tracking ID: 3421322)

SYMPTOM:
1. I/O failure messages with reservation conflict logged in system log of LDOM 
guest..

..
..
Tue Oct 22 03:40:54.161: I/O analysis done as DMP_PATH_OKAY on Path 
c3t50060E801025BEE0d12s2 belonging to Dmpnode 3pardata0_940
Tue Oct 22 03:40:54.461: SCSI error occurred on Path c3t50060E801025BEE0d12s2: 
opcode=0x2a reported reservation conflict (status=0x18, key=0x0, asc=0x0, 
ascq=0x0) 
Tue Oct 22 03:40:54.461: I/O analysis done as DMP_RSV_CONFLICT_ERR on Path 
c3t50060E801025BEE0d12s2 belonging to Dmpnode 3pardata0_940 
Tue Oct 22 03:40:54.461: I/O error occurred (errno=0x5) on Dmpnode ams_23000_60 
..

2. faiiling tag is seen against disks in vxdisk list output of LDOM guest

bash-3.2# vxdisk list
..
3pardata0_940 auto:cdsdisk    3pardata0_940  dg1          online failing

DESCRIPTION:
With disk based I/O fencing, multipathing software like Dynamic multipathing 
(DMP) does SCSI-3 Persistent Reservation (SCSI-3 PR) on a virtual storage 
device (vSCSI). Now DMP in I/O domains would catch those commands. While 
processing it might generate multiple SCSI commands and those may get retried 
for retryable errors from end storage device. This retry passes but failure was 
returned to LDOM guest due to code bug.

RESOLUTION:
code changes were done in DMP to fix issue.

* 3446010 (Tracking ID: 3421330)

SYMPTOM:
[root@vcst42b-v9 ~]#vxfentsthdw -n

Veritas vxfentsthdw version 6.1.0 Solaris
..
..

Remove key KeyB on node vcst42b-v9 ..................................... Failed
Removing test keys and temporary files, if any...

DESCRIPTION:
The vxfentsthdw is compliance utility provided to test disks for support of SCSI-3 persistent reservations. It verifies by 
simulating various scenarios that the shared storage device can be used for I/O fencing. Some of scenarios were failing with 
DMP (Veritas Dynamic Multipathing)backed virtual devices due to unhandled cases from DMP in I/O domains.

RESOLUTION:
Code changes were done to fix unhandled cases. ALL SCSI-3 scenarios from vxfentsthdw utility tests PASS for DMP backed virtual 
devices from LDOM guest.

* 3446126 (Tracking ID: 3338208)

SYMPTOM:
writes from fenced out LDOM guest node on Active-Passive (AP/F) shared storage
device fail. I/O failure messages seen in system log..

..
Mon Oct 14 06:03:39.411: I/O retry(6) on Path c0d8s2 belonging to Dmpnode
emc_clariion0_48
Mon Oct 14 06:03:39.951: SCSI error occurred on Path c0d8s2: opcode=0x2a
reported device not ready (status=0x2, key=0x2, asc=0x4, ascq=0x3) LUN not
ready, manual intervention required
Mon Oct 14 06:03:39.951: I/O analysis done as DMP_PATH_FAILURE on Path c0d8s2
belonging to Dmpnode emc_clariion0_48
Mon Oct 14 06:03:40.311: Marked as failing Path c0d1s2 belonging to Dmpnode
emc_clariion0_48
Mon Oct 14 06:03:40.671: Disabled Path c0d8s2 belonging to Dmpnode
emc_clariion0_48 due to path failure
..
..

DESCRIPTION:
write SCSI commands from fenced out host should fail with reservation
conflict from shared device. This error code needs to be propagated to upper
layers for appropriate action.

In DMP ioctl interface, DMP first sends command through available active paths.
If command fails then command was unnecessarily tried on passive paths. 

This causes command to be failed with not ready error code and this error code
getting propagated to upper layer instead of reservation conflict.

RESOLUTION:
Added code changes to not retry IO SCSI commands on passive paths in case of
Active-Passive (AP/F) shared storage device.

* 3447306 (Tracking ID: 3424798)

SYMPTOM:
Veritas Volume Manager (VxVM) mirror attach operations (e.g., plex attach,
vxassist mirror, and third-mirror break-off snapshot resynchronization) may take
longer time under heavy application I/O load. The vxtask list command shows
tasks are in the 'auto-throttled (waiting)' state for a long time.

DESCRIPTION:
With the AdminIO de-prioritization feature, VxVM administrative I/O's (e.g. plex
attach, vxassist mirror, and third-mirror break-off snapshot resynchronization)
are de-prioritized under heavy application I/O load, but this can lead to very
slow progress of these operations.

RESOLUTION:
The code is modified to disable the AdminIO de-prioritization feature.

* 3447894 (Tracking ID: 3353211)

SYMPTOM:
A. After EMC Symmetrix BCV (Business Continuance Volume) device switches to
read-write mode, continuous vxdmp (Veritas Dynamic Multi Pathing) error messages
flood syslog as shown below:

NOTE VxVM vxdmp V-5-3-1061 dmp_restore_node: The path 18/0x2 has not yet aged - 
299
NOTE VxVM vxdmp 0 dmp_tur_temp_pgr: open failed: error = 6 dev=0x24/0xD0
NOTE VxVM vxdmp V-5-3-1062 dmp_restore_node: Unstable path 18/0x230 will not be 
available for I/O until 300 seconds
NOTE VxVM vxdmp V-5-3-1061 dmp_restore_node: The path 18/0x2 has not yet aged - 
299
NOTE VxVM vxdmp V-5-0-0 [Error] i/o error occurred (errno=0x6) on dmpnode 
36/0xD0
..
..

B. DMP metanode/path under DMP metanode gets disabled unexpectedly.

DESCRIPTION:
A. DMP caches the last discovery NDELAY open for the BCV dmpnode paths. BCV
device switching to read-write mode is an array side operation. Typically in
such cases, the 
system administrators are required to run the following command:

1. vxdisk rm <accessname>

OR 

In case of parallel backup jobs,

1. vxdisk offline <accessname>
2. vxdisk online <accessname>

This causes DMP to close cached open, and during the next discovery, the device
is opened in read-write mode. If the above steps are skipped then it causes the
DMP device to go in state where one of the paths is in read-write mode and the
others remain in NDELAY mode. 

If the above layers request for NORMAL open, then the DMP has the code to close
NDELAY cached open and reopen in NORMAL mode. When the dmpnode is online, this
happens only for one of the paths of dmpnode. 

B. DMP performs error analysis for paths on which I/O has failed. In some cases,
the SCSI probes are sent, failed with the return value/sense codes that are not
handled by DMP. This causes the paths to get disabled.

RESOLUTION:
A. The code is modified for the DMP EMC ASL (Array Support Library) to handle
case A for EMC Symmetrix arrays.
B. The DMP code is modified to handle the SCSI conditions correctly for case B.

* 3449714 (Tracking ID: 3417185)

SYMPTOM:
Rebooting host, after the exclusion of a dmpnode while I/O is in progress on it,
leads to vxconfigd core dump.

DESCRIPTION:
The function which deletes the path after exclusion, does not update the 
corresponding data structures properly. Consequently, rebooting the host, after 
the exclusion of dmpnode while I/O is in progress on it, leads to vxconfigd core 
dump with following stack

ddl_find_devno_in_table ()
ddl_get_disk_policy ()
devintf_add_autoconfig_main ()
devintf_add_autoconfig ()
mode_set ()
req_vold_enable ()
request_loop ()
main ()

RESOLUTION:
Code changes have been made to update the data structure properly.

* 3452709 (Tracking ID: 3317430)

SYMPTOM:
"vxdiskunsetup" utility throws  error during execution. 
Following error message is observed.
"Device unexport failed: Operation is not supported".

DESCRIPTION:
In vxdisksetup vxunexport is called, without checking if the disk is 
exported or the CVM protocol version. When the bits are upgraded 
from 5.1SP1RP4, the CVM protocol version is not updated. Hence the error.

RESOLUTION:
Code changes done so that the vxunexport is called after doing proper checks.

* 3452727 (Tracking ID: 3279932)

SYMPTOM:
The vxdisksetup and vxdiskunsetup utilities were failing on disk which
is part of deported disk group (DG), even if '-f' option is specified.
The vxdisksetup command fails with following error:

VxVM vxedpart ERROR V-5-1-10089 partition modification failed :
Device or resource busy 

The vxdiskunsetup command fails following error:

VxVM vxdisk ERROR ERROR V-5-1-0 Device <Disk name> appears to be 
owned by disk group <Disk group>. Use -f option to force destroy.
VxVM vxdiskunsetup ERROR V-5-2-5052 <Disk name>: Disk destroy failed.

DESCRIPTION:
The vxdisksetup and vxdiskunsetup utilities internally call the
'vxdisk' utility. Due to a defect in vxdisksetup and vxdiskunsetup, the vxdisk
operation used to fail on disk which is part of deported DG, even if '-f'
operation is requested by user.

RESOLUTION:
Code changes are done to the vxdisksetup and vxdiskunsetup
utilities so that when "-f" option is specified the operation succeeds.

* 3452811 (Tracking ID: 3445120)

SYMPTOM:
Default value of tunable 'vol_min_lowmem_sz' is not consistent on all platforms.

DESCRIPTION:
Default value of tunable 'vol_min_lowmem_sz' is not consistent on all platforms.

RESOLUTION:
Set the default value of tunable 'vol_min_lowmem_sz' to 32MB on all platforms.

* 3455455 (Tracking ID: 3409612)

SYMPTOM:
Fails to run "vxtune reclaim_on_delete_start_time <value>" if the specified
value is 
outside the range of 22:00-03:59 (E.g. setting it to 04:00 or 19:30 fails).

DESCRIPTION:
Tunable reclaim_on_delete_start_time can be set to any time value within 00:00
to 23:59. But because of the wrong regular expression to parse time, it cannot
be set to all values in 00:00 - 23:59.

RESOLUTION:
The regular expression has been updated to parse time format correctly.
Now all values in 00:00-23:59 can be set.

* 3456729 (Tracking ID: 3428025)

SYMPTOM:
When heavy parallel I/O load is issued, system running Symantec Replication 
Option (VVR) and configured as VVR primary, panics with the below stack:

schedule 
vol_alloc 
vol_zalloc 
volsio_alloc_kc_types 
vol_subdisk_iogen_base 
volobject_iogen 
vol_rv_iogen 
volobject_iogen 
vol_rv_batch_write_start 
volkcontext_process 
vol_rv_start_next_batch 
vol_rv_batch_write_done 
[...]
vol_rv_batch_write_done 
volkcontext_process 
vol_rv_start_next_batch 
vol_rv_batch_write_done 
volkcontext_process 
vol_rv_start_next_batch 
vol_rv_batch_kio 
volkiostart 
vol_linux_kio_start 
vol_fsvm_strategy

DESCRIPTION:
Heavy parallel I/O load leads to I/O throttling in Symantec Replication Option (VVR). Improper throttle handling leads to kernel stack 
overflow.

RESOLUTION:
Handled I/O throttle correctly which avoids stack overflow and subsequent panic.

* 3458036 (Tracking ID: 3418830)

SYMPTOM:
Node boot-up is getting hung while starting vxconfigd if 
'/etc/VRTSvcs/conf/sysname' file or 
'/etc/vx/vxvm-hostprefix' file is not present. User will see following messages 
on console.

# Starting up VxVM
...
# VxVM general startup...

After these messages, it will hung.

DESCRIPTION:
While generating unique prefix, we were calling scanf instead of 
sscanf for fetching prefix which 
resulted in this hang. So while starting vxconfigd, it was waiting for some user 
input because of scanf which 
resulted in hang while booting up the node.

RESOLUTION:
Code changes are done to address this issue.

* 3458799 (Tracking ID: 3197987)

SYMPTOM:
vxconfigd dumps core, when 'vxddladm assign names file=<filename> is executed and the file has one or more invalid values 
for enclosure vendor ID or product ID.

DESCRIPTION:
When the input file provided to 'vxddladm assign names file=<filename>' has invalid vendor ID or product ID, the vxconfigd 
daemon is unable to find the corresponding enclosure being referred to and makes an invalid memory reference. 

Following stack trace can be seen-

strncasecmp () from /lib/libc.so.6
ddl_load_namefile ()
req_ddl_set_names ()
request_loop ()
main ()

RESOLUTION:
As a fix the vxconfigd daemon verifies the validity of input vendor ID and
product ID before making a memory reference to the corresponding enclosure in
its internal data structures.

* 3470346 (Tracking ID: 3377383)

SYMPTOM:
vxconfigd crashes when a disk under DMP reports device failure. After this, the 
following error will be seen when a VxVM (Veritas Volume 
Manager)command is excuted:-
"VxVM vxdisk ERROR V-5-1-684 IPC failure: Configuration daemon is not 
accessible"

DESCRIPTION:
If a disk fails and reports certain failure to DMP (Veritas Dynamic 
Multipathing), then vxconfigd crashes because that error is not handled 
properly.

RESOLUTION:
The code is modified to properly handle the device failures reported by a failed 
disk under DMP.

* 3498923 (Tracking ID: 3087893)

SYMPTOM:
EMC PowerPath pseudo device mappings change with each reboot with VxVM 
(Veritas Volume Manager).

DESCRIPTION:
VxVM invokes PowerPath command 'powermt display unmanaged' to discover
 PowerPath unmanaged devices. This command destroys PowerPath devices mappings 
during early boot stage when PowerPath isn't fully up.

RESOLUTION:
EMC fixed the issue by introducing an environment variable MPAPI_EARLY_BOOT to 
powermt command. VxVM startup script set the variable to TRUE before calling 
powermt command. Powermt understands the early boot phase and does things 
differently. The variable is unset by VxVM after device discovery.



INSTALLING THE PATCH
--------------------
Run the Installer script to automatically install the patch:
-----------------------------------------------------------
To install the patch perform the following steps on at least one node in the cluster:
1. Copy the hot-fix vm-sol11_sparc-Patch-6.1.1.400.tar.gz to /tmp
2. Untar vm-sol11_sparc-Patch-6.1.1.400.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/vm-sol11_sparc-Patch-6.1.1.400.tar.gz
    # tar xf /tmp/vm-sol11_sparc-Patch-6.1.1.400.tar
3. Install the hotfix
    # pwd /tmp/hf
    # ./installVRTSvxvm611P400 [<host1> <host2>...]

Install the patch manually:
--------------------------
o Before-the-upgrade :-
  (a) Stop applications using any VxVM volumes.
  (b) Stop I/Os to all the VxVM volumes.
  (c) Umount any filesystems with VxVM volumes.
  (d) In case of multiple boot environments, boot using the BE you wish to install the patch on.
For Solaris 11 release, refer to the man pages for instructions on using install and uninstall options of 'pkg'
command provided with Solaris.
Any other special or non-generic installation instructions should be described below as special instructions.
The following example installs a patch to a standalone machine:
        example# pkg install --accept -g /patch_location/VRTSvxvm.p5p VRTSvxvm
After 'pkg install' please follow mandatory configuration steps mentioned in special instructions


REMOVING THE PATCH
------------------
The following example removes a patch from a standalone system:
        example# pkg uninstall VRTSvxvm
Note: Uninstalling the patch will remove the entire package. If you need earlier version of the package, install it f
rom the original source media.


SPECIAL INSTRUCTIONS
--------------------
1) Delete '.vxvm-configured'
    # rm  /etc/vx/reconfig.d/state.d/.vxvm-configured
2) Refresh vxvm-configure
    # svcadm refresh vxvm-configure
3) Delete  'install-db'
    # rm /etc/vx/reconfig.d/state.d/install-db
4) Reboot the system using shutdown command.
You need to use the shutdown command to reboot the system after patch installation or de-installation:
    shutdown -g0 -y -i6


OTHERS
------
NONE



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