* * * READ ME * * *
                * * * Veritas Volume Manager 6.0.3 * * *
                      * * * Public Hot Fix 1 * * *
                         Patch Date: 2013-09-13


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
----------
Veritas Volume Manager 6.0.3 Public Hot Fix 1


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
HP-UX 11i v3 (11.31)


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


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Veritas Storage Foundation for Oracle RAC 6.0.1
   * Veritas Storage Foundation Cluster File System 6.0.1
   * Veritas Storage Foundation 6.0.1
   * Veritas Storage Foundation High Availability 6.0.1
   * Veritas Dynamic Multi-Pathing 6.0.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: PVCO_04001, PVKL_04002
* 2892702 (2567618) The VRTSexplorer dumps core in vxcheckhbaapi/print_target_map_entry.
* 3090670 (3090667) The system panics or hangs while executing the "vxdisk -o thin, fssize list" 
command as part of Veritas Operations Manager (VOM) Storage Foundation (SF) 
discovery.
* 3140411 (2959325) The vxconfigd(1M) daemon dumps core while performing the disk group move 
operation.
* 3150893 (3119102) Support LDOM Live Migration with fencing enabled
* 3156719 (2857044) System crash on voldco_getalloffset when trying to resize filesystem.
* 3159096 (3146715) 'Rlinks' do not connect with NAT configurations on Little Endian Architecture.
* 3254227 (3182350) VxVM volume creation or size increase hangs
* 3254229 (3063378) VM commands are slow when Read Only disks are presented
* 3254427 (3182175) "vxdisk -o thin, fssize list" command can report incorrect File System usage data
* 3280555 (2959733) Handling device path reconfiguration incase the device paths are moved across LUNs or enclosures to prevent vxconfigd coredump.
* 3294641 (3107741) vxrvg snapdestroy fails with "Transaction aborted waiting for io drain" error and vxconfigd hangs for around 45 minutes
* 3294642 (3019684) IO hang on master while SRL is about to overflow
Patch ID: PVCO_03974, PVKL_03975
* 2853712 (2815517) vxdg adddisk allows mixing of clone & non-clone disks in a DiskGroup.
* 2863672 (2834046) NFS migration failed due to device reminoring.
* 2892590 (2779580) Secondary node gives configuration error (no Primary RVG) after reboot of 
master node on Primary site.
* 2892682 (2837717) "vxdisk(1M) resize" command fails if 'da name' is specified.
* 2892684 (1859018) "link detached from volume" warnings are displayed when a linked-breakoff snapshot is created
* 2892698 (2851085) DMP doesn't detect implicit LUN ownership changes for some of the dmpnodes
* 2892716 (2753954) When a cable is disconnected from one port of a dual-port FC 
HBA, the paths via another port are marked as SUSPECT PATH.
* 2913789 (2876256) vxdisk -f -g <dg1> set <da_name> mediatype=ssd command is failing with new namingscheme.
* 2940447 (2940446) A full file system check (fsck) hangs on I/O in Veritas Volume Manager (VxVM) 
when the cache object size is very large.
* 2941193 (1982965) The vxdg(1M) command import operation fails if the disk access) name is based 
on the naming scheme which is different from the prevailing naming scheme on 
the host.
* 2941226 (2915063) During the detachment of a plex of a volume in the Cluster Volume Manager (CVM) 
environment, the system panics.
* 2941234 (2899173) The vxconfigd(1M) daemon hangs after executing the "vradmin stoprep" command.
* 2941237 (2919318) The I/O fencing key value of data disk are different and abnormal in a VCS cluster with I/O fencing.
* 2941252 (1973983) The vxunreloc(1M) command fails when the Data Change Object (DCO) plex is in 
DISABLED state.
* 2942336 (1765916) VxVM socket files don't have proper write protection
* 2944708 (1725593) The 'vxdmpadm listctlr' command has to be enhanced to print the count of device
paths seen through the controller.
* 2944710 (2744004) vxconfigd is hung on the VVR secondary node during VVR configuration.
* 2944714 (2833498) vxconfigd hangs while reclaim operation is in progress on volumes having instant snapshots
* 2944717 (2851403) System panic is seen while unloading "vxio" module. This happens whenever VxVM uses SmartMove feature and the "vxportal" module gets reloaded (for e.g. during VxFS package upgrade)
* 2944722 (2869594) Master node panics due to corruption if space optimized snapshots are refreshed and 'vxclustadm setmaster' is used to select master.
* 2944724 (2892983) vxvol dumps core if new links are added while the operation is in progress.
* 2944725 (2910043) Avoid order 8 allocation by vxconfigd in node reconfig.
* 2944727 (2919720) The vxconfigd(1M) command dumps core in the rec_lock1_5() function.
* 2944729 (2933138) panic in voldco_update_itemq_chunk() due to accessing invalid buffer
* 2944736 (2857827) During early boot, recovery of linked volume resize fails due to /usr not mounted.
* 2944741 (2866059) The error messages displayed during the resize operation by using the vxdisk
(1M) command needs to be enhanced.
* 2962257 (2898547) The 'vradmind' process dumps core on the Veritas Volume Replicator (VVR) 
secondary site in a Clustered Volume Replicator (CVR) environment, when 
Logowner Service Group on VVR Primary Site is shuffled across its CVM 
(Clustered Volume Manager) nodes.
* 2974870 (2935771) In a Veritas Volume Replicator (VVR) environment, the 'rlinks' disconnect after 
switching the master node.
* 2976946 (2919714) On a thin Logical Unit Number (LUN), the vxevac(1M) command returns 0 without 
migrating the unmounted-VxFS volumes.
* 2978189 (2948172) Executing "vxdisk -o thin, fssize list" command can result in panic.
* 2979767 (2798673) System panics in voldco_alloc_layout() while creating volume with instant DCO
* 2983679 (2970368) Enhance handling of SRDF-R2 Write-Disabled devices in DMP.
* 3004823 (2692012) When moving the subdisks by using the vxassist(1M) command or the vxevac(1M) 
command, if the disk tags are not the same for the source and the destination, 
the command fails with a generic error message.
* 3004852 (2886333) The vxdg(1M) join operation should not allow mixing of clone and non-clone 
disks in a disk group.
* 3005921 (1901838) After installation of a license key that enables multi-pathing, the state of 
the controller is shown as DISABLED in the command- line-interface (CLI) output 
for the vxdmpadm(1M) command.
* 3006262 (2715129) Vxconfigd hangs during Master takeover in a CVM (Clustered Volume Manager) 
environment.
* 3011391 (2965910) Volume creation with vxassist using "-o ordered alloc=<disk-class>" dumps core.
* 3011444 (2398416) vxassist dumps core while creating volume after adding attribute "wantmirror=ctlr" in default vxassist rulefile
* 3020087 (2619600) Live migration of virtual machine having SFHA/SFCFSHA stack with data disks fencing enabled, causes service groups configured on virtual machine to fault.
* 3025973 (3002770) While issuing a SCSI inquiry command, NULL pointer dereference in DMP causes 
system panic.
* 3026288 (2962262) Uninstall of dmp fails in presence of other multipathing solutions
* 3027482 (2273190) Incorrect setting of UNDISCOVERED flag can lead to database inconsistency


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

Patch ID: PVCO_04001, PVKL_04002

* 2892702 (Tracking ID: 2567618)

SYMPTOM:
The VRTSexplorer dumps core with the segmentation fault in 
checkhbaapi/print_target_map_entry. The stack trace is observed as follows:
 print_target_map_entry()
check_hbaapi()
main()
_start()

DESCRIPTION:
The checkhbaapi utility uses the HBA_GetFcpTargetMapping() API which returns 
the current set of mappings between the OS and the Fiber Channel Protocol (FCP) 
devices for a given Host Bus Adapter (HBA) port. The maximum limit for mappings 
is set to 512 and only that much memory is allocated. When the number of 
mappings returned is greater than 512, the function that prints this 
information tries to access the entries beyond that limit, which results in 
core dumps.

RESOLUTION:
The code is modified to allocate enough memory for all the mappings returned by 
the HBA_GetFcpTargetMapping() API.

* 3090670 (Tracking ID: 3090667)

SYMPTOM:
The "vxdisk -o thin, fssize list" command can cause system to hang or panic due 
to a kernel memory corruption. This command is also issued by Veritas 
Operations Manager (VOM) internally during Storage Foundation (SF) discovery. 
The following stack trace is observed:
 panic string:   kernel heap corruption detected
 vol_objioctl
vol_object_ioctl
voliod_ioctl - frame recycled
volsioctl_real

DESCRIPTION:
Veritas Volume Manager (VxVM) allocates data structures and invokes thin 
Logical Unit Numbers (LUNs) specific function handlers, to determine the disk 
space that is actively used by the file system. One of the function handlers 
wrongly accesses the system memory beyond the allocated data structure, which 
results in the kernel memory corruption.

RESOLUTION:
The code is modified so that the problematic function handler accesses only the 
allocated memory.

* 3140411 (Tracking ID: 2959325)

SYMPTOM:
The vxconfigd(1M) daemon dumps core while performing the disk group move 
operation with the following stack trace:
 dg_trans_start ()
 dg_configure_size ()
 config_enable_copy ()
 da_enable_copy ()
 ncopy_set_disk ()
 ncopy_set_group ()
 ncopy_policy_some ()
 ncopy_set_copies ()
 dg_balance_copies_helper ()
 dg_transfer_copies ()
 in vold_dm_dis_da ()
 in dg_move_complete ()
 in req_dg_move ()
 in request_loop ()
 in main ()

DESCRIPTION:
The core dump occurs when the disk group move operation tries to reduce the 
size of the configuration records in the disk group, when the size is large and 
the disk group move operation needs more space for the new- configrecord 
entries. Since, both the reduction of the size of configuration records 
(compaction) and the configuration change by disk group move operation cannot 
co-exist, this result in the core dump.

RESOLUTION:
The code is modified to make the compaction first before the configuration 
change by the disk group move operation.

* 3150893 (Tracking ID: 3119102)

SYMPTOM:
Live migration of virtual machine having Storage Foundation stack with data
disks fencing enabled, causes service groups configured on virtual machine to 
fault.

DESCRIPTION:
After live migration of virtual machine having Storage Foundation stack with
data disks fencing enabled is done, I/O fails on shared SAN devices with
reservation conflict and causes service groups to fault. 

Live migration causes SCSI initiator change. Hence I/O coming from migrated 
server to shared SAN storage fails with reservation conflict.

RESOLUTION:
Code changes are added to check whether the host is fenced off from cluster. If 
host is not fenced off, then registration key is re-registered for dmpnode
through migrated server and restart IO.

Admin needs to manually invoke 'vxdmpadm pgrrereg' from guest which was live
migrated after live migration.

* 3156719 (Tracking ID: 2857044)

SYMPTOM:
System crashes with following stack when resizing volume with DCO version 30.

PID: 43437  TASK: ffff88402a70aae0  CPU: 17  COMMAND: "vxconfigd"
 #0 [ffff884055a47600] machine_kexec at ffffffff8103284b
 #1 [ffff884055a47660] crash_kexec at ffffffff810ba972
 #2 [ffff884055a47730] oops_end at ffffffff81501860
 #3 [ffff884055a47760] no_context at ffffffff81043bfb
 #4 [ffff884055a477b0] __bad_area_nosemaphore at ffffffff81043e85
 #5 [ffff884055a47800] bad_area at ffffffff81043fae
 #6 [ffff884055a47830] __do_page_fault at ffffffff81044760
 #7 [ffff884055a47950] do_page_fault at ffffffff8150383e
 #8 [ffff884055a47980] page_fault at ffffffff81500bf5
    [exception RIP: voldco_getalloffset+38]
    RIP: ffffffffa0bcc436  RSP: ffff884055a47a38  RFLAGS: 00010046
    RAX: 0000000000000001  RBX: ffff883032f9eac0  RCX: 000000000000000f
    RDX: ffff88205613d940  RSI: ffff8830392230c0  RDI: ffff883fd1f55800
    RBP: ffff884055a47a38   R8: 0000000000000000   R9: 0000000000000000
    R10: 000000000000000e  R11: 000000000000000d  R12: ffff882020e80cc0
    R13: 0000000000000001  R14: ffff883fd1f55800  R15: ffff883fd1f559e8
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#9 [ffff884055a47a40] voldco_get_map_extents at ffffffffa0bd09ab [vxio]
#10 [ffff884055a47a90] voldco_update_extents_info at ffffffffa0bd8494 [vxio]
#11 [ffff884055a47ab0] voldco_instant_resize_30 at ffffffffa0bd8758 [vxio]
#12 [ffff884055a47ba0] volfmr_instant_resize at ffffffffa0c03855 [vxio]
#13 [ffff884055a47bb0] voldco_process_instant_op at ffffffffa0bcae2f [vxio]
#14 [ffff884055a47c30] volfmr_process_instant_op at ffffffffa0c03a74 [vxio]
#15 [ffff884055a47c40] vol_mv_precommit at ffffffffa0c1ad02 [vxio]
#16 [ffff884055a47c90] vol_commit_iolock_objects at ffffffffa0c1244f [vxio]
#17 [ffff884055a47cf0] vol_ktrans_commit at ffffffffa0c131ce [vxio]
#18 [ffff884055a47d70] volconfig_ioctl at ffffffffa0c8451f [vxio]
#19 [ffff884055a47db0] volsioctl_real at ffffffffa0c8c9b8 [vxio]
#20 [ffff884055a47e90] vols_ioctl at ffffffffa0040126 [vxspec]
#21 [ffff884055a47eb0] vols_compat_ioctl at ffffffffa004034d [vxspec]
#22 [ffff884055a47ee0] compat_sys_ioctl at ffffffff811ce0ed
#23 [ffff884055a47f80] sysenter_dispatch at ffffffff8104a880

DESCRIPTION:
While updating DCO TOC(Table Of Content) entries into in-core TOC, a TOC entry 
is wrongly freed and zeroed out. As a result, traversing TOC entries leads to 
NULL pointer dereference and thus, causing the panic.

RESOLUTION:
Code changes have been made to appropriately update the TOC entries.

* 3159096 (Tracking ID: 3146715)

SYMPTOM:
The 'rinks' do not connect with the Network Address Translation (NAT) 
configurations on Little Endian Architecture (LEA).

DESCRIPTION:
On LEAs, the Internet Protocol (IP) address configured with the NAT mechanism 
is not converted from the host-byte order to the network-byte order. As a 
result, the address used for the rlink connection mechanism gets distorted and 
the 'rlinks' fail to connect.

RESOLUTION:
The code is modified to convert the IP address to the network-byte order before 
it is used.

* 3254227 (Tracking ID: 3182350)

SYMPTOM:
If there are more than 8192 paths in the system, the 
vxassist command hangs while creating a new VxVM volume or 
increasing the existing volume's size.

DESCRIPTION:
The vxassist command creates a hash table with max 8192 entries. Hence
other paths greater than 8192 will get hashed to an overlapping bucket
in this hash table. In such case, multiple paths which hash to the same bucket 
are linked in a chain.

In order to find a particular path in a specified bucket, vxassist command 
needs to traverse the entire linked chain. However vxassist only searches
the first element and hangs.

RESOLUTION:
The code is modifed to traverse the entire linked chain.

* 3254229 (Tracking ID: 3063378)

SYMPTOM:
Some VxVM (Volume Manager) commands run slowly when "read only" devices (e.g. 
EMC SRDF-WD, BCV-NR) are presented and managed by EMC PowerPath.

DESCRIPTION:
When performing IO write on a "read only" device, IO fails and retry will be 
done if IO is on TPD(Third Party Driver) device and path status is okay. Owing 
to the retry, IO will not return until timeout reaches which gives the 
perception that VxVM commands run slowly.

RESOLUTION:
Code changes have been done to return IO immediately with disk media failure if 
IO fails on any TPD device and path status is okay.

* 3254427 (Tracking ID: 3182175)

SYMPTOM:
"vxdisk -o thin, fssize list" command can report incorrect File System usage 
data.

DESCRIPTION:
An integer overflow in the internal calculation can cause this command to report 
incorrect per disk FS usage.

RESOLUTION:
Code changes are made so that the command would report the correct File System 
usage data.

* 3280555 (Tracking ID: 2959733)

SYMPTOM:
When device paths are moved across LUNs or enclosures, vxconfigd daemon can dump
core or data corruption can occur due to internal data structure inconsistencies.

DESCRIPTION:
When the device path configuration is changed after a planned or unplanned
disconnection by moving only a subset of the device paths across LUNs or other
storage arrays (enclosures), the DMP's internal data structures get messed up
leading to vxconfigd daemon dumping core and in some situations data corruption
due to incorrect LUN to path mappings.

RESOLUTION:
To resolve this issue, the vxconfigd code was modified to detect such situations
gracefully and modify the internal data structures accordingly to avoid a
vxconfigd coredump and data corruption

* 3294641 (Tracking ID: 3107741)

SYMPTOM:
"vxrvg snapdestroy" command fails with error message "Transaction aborted
waiting for io drain", and vxconfigd hang is observed. vxconfigd stack trace is:

vol_commit_iowait_objects
vol_commit_iolock_objects
vol_ktrans_commit
volconfig_ioctl
volsioctl_real
vols_ioctl
vols_compat_ioctl
compat_sys_ioctl
...

DESCRIPTION:
The smartmove query of VxFS depends on some reads and writes. If some
transaction in VxVM blocks the new read and write, then API is hung waiting for
the response. This creates a deadlock-like situation with Smartmove API is
waiting for transaction to complete and transaction waiting Smartmove API is
hung waiting for transaction, and hence the hang.

RESOLUTION:
Disallow transactions during the Smartmove API.

* 3294642 (Tracking ID: 3019684)

SYMPTOM:
IO hang is observed when SRL is about to overflow after logowner switch from
slave to master. Stack trace looks like:

biowait
default_physio
volrdwr
fop_write
write
syscall_trap32

DESCRIPTION:
Delineating the steps, with slave as logowner, overflow the SRL and following it
up with DCM resync. Then, switching back logowner to master and trying to
overflow SRL again would manifest the IO hang in the master when SRL is about to
overflow. This happens because the master has a stale flag set with incorrect
value related to last SRL overflow.

RESOLUTION:
Reset the stale flag and ensure that flag is reset whether the logowner is
master or slave.

Patch ID: PVCO_03974, PVKL_03975

* 2853712 (Tracking ID: 2815517)

SYMPTOM:
vxdg adddisk succeeds to add a clone disk to non-clone and non-clone disk to 
clone diskgroup, resulting in mixed diskgroup.

DESCRIPTION:
vxdg import fails for diskgroup which has mix of clone and non-clone disks. So 
vxdg adddisk should not allow creation of mixed diskgroup.

RESOLUTION:
vxdisk adddisk code is modified to return an error for an attempt to add clone 
disk to non-clone or non-clone disks to clone diskgroup, Thus it prevents 
addition of disk in diskgroup which leads to mixed diskgroup.

* 2863672 (Tracking ID: 2834046)

SYMPTOM:
Beginning from the 5.1 release, VxVM automatically reminors the disk group and 
its objects in certain cases, and displays the following error message:
vxvm:vxconfigd: V-5-1-14563 Disk group mydg: base minor was in private pool, 
will be change to shared pool.
 NFS clients that attempt to reconnect to a file system on the disk group's 
volume fail because the file handle becomes stale. The NFS client needs to re-
mount the file system and probably a reboot to clear this. The issue is 
observed under the following situations:
aC/	When a private disk group is imported as shared, or a shared disk 
group is imported as private. 
aC/	After upgrading from a version of VxVM prior to 5.1

DESCRIPTION:
Since the HxRT 5.1 SP1 release, the minor-number space is divided into two 
pools, one for the private disk groups and the other for the shared disk 
groups. During the disk group import operation, the disk group base- minor 
numbers are adjusted automatically, if not in the correct pool. In a similar 
manner, the volumes in the disk groups are also adjusted. This behavior reduces 
many minor conflicting cases during the disk group import operation. However, 
in the NFS environment, it makes all the file handles on the client side stale. 
Subsequently, customers had to unmount files systems and restart the 
applications.

RESOLUTION:
The code is modified to add a new tunable "autoreminor". The default value of 
the autoreminor tunable is "on". Use "vxdefault set autoreminor off" to turn it 
off for NFS server environments. If the NFS server is in a CVM cluster, make 
the same change on all the nodes.

* 2892590 (Tracking ID: 2779580)

SYMPTOM:
In a Veritas Volume Replicator (VVR) environment, the secondary node gives the 
configuration error 'no Primary RVG' when the primary master node (default 
logowner ) is rebooted and the slave node becomes the new master node.

DESCRIPTION:
After the primary master node is rebooted, the new master node sends 
a 'handshake' request for the vradmind communication to the secondary node. As 
a part of the 'handshake' request, the secondary node deletes the old 
configuration including the 'Primary RVG'. During this phase, the secondary 
node receives the configuration update message from the primary node for the 
old configuration. The secondary node does not find the old 'Primary RVG' 
configuration for processing this message. Hence, it cannot proceed with the 
pending 'handshake' request. This results in a 'no Primary RVG' configuration 
error.

RESOLUTION:
The code is modified such that during the 'handshake' request phase, the 
configuration messages of the old 'Primary RVG' gets discarded.

* 2892682 (Tracking ID: 2837717)

SYMPTOM:
The "vxdisk resize" command fails if 'da name' is specified. An example is as 
following:
 # vxdisk list eva4k6k1_46 | grep ^pub
pubpaths:  block=/dev/vx/dmp/eva4k6k1_46 char=/dev/vx/rdmp/eva4k6k1_46
public:    slice=0 offset=32896 len=680736 disk_offset=0
 # vxdisk resize eva4k6k1_46 length=813632

DESCRIPTION:
The scenario for 'da name' is not handled in the resize code path. As a result, 
the "vxdisk(1M) resize" command fails if the 'da name' is specified.

RESOLUTION:
The code is modified such that if 'dm name' is not specified to resize, then 
only the 'da name' specific operation is performed.

* 2892684 (Tracking ID: 1859018)

SYMPTOM:
"Link <link-name> link detached from volume <volume-name>" warnings are 
displayed when a linked-breakoff snapshot is created.

DESCRIPTION:
The purpose of these message is to let user and administrators know about the 
detach of link due to I/O errors. These messages get displayed uneccesarily 
whenever linked-breakoff snapshot is created.

RESOLUTION:
Code changes are made to display messages only when link is detached due to I/O 
errors on volumes involved in link-relationship.

* 2892698 (Tracking ID: 2851085)

SYMPTOM:
DMP doesn't detect implicit LUN ownership changes

DESCRIPTION:
DMP does ownership monitoring for ALUA arrays to detect implicit LUN ownership
changes. This helps DMP to always use Active/Optimized path for sending down I/O.
 This feature is controlled using dmp_monitor_ownership tune and is enabled by
default. 

In case of partial discovery triggered through event source daemon (vxesd), ALUA
information kept in kernel data structure for ownership monitoring was getting
wiped. This causes ownership monitoring to not work for these dmpnodes.

RESOLUTION:
Source has been updated to handle such case.

* 2892716 (Tracking ID: 2753954)

SYMPTOM:
When cable is disconnected from one port of a dual-port FC HBA, only 
paths going through the port should be marked as SUSPECT. But paths going 
through other port are also getting marked as SUSPECT.

DESCRIPTION:
Disconnection of a cable from a HBA port generates a FC event. 
When the event is generated, paths of all ports of the corresponding HBA are 
marked as SUSPECT.

RESOLUTION:
The code changes are done to mark the paths only going through the 
port on which FC event is generated.

* 2913789 (Tracking ID: 2876256)

SYMPTOM:
"vxdisk set mediatype" command fails the naming scheme is set to 'new'.
The following error message is observed:
"VxVM vxdisk ERROR V-5-1-12952 Device <new disk name> not in configuration or 
associated with DG <dg name>"

DESCRIPTION:
When vxdisk(1M) command to set the mediatype is run on the disk 'new naming-
scheme', it fails. The case to handle the scenario to get the corresponding 'da 
name' of the 'new naming-scheme' is not handled.

RESOLUTION:
If the disk with 'new naming-scheme' is not found then get the corresponding 'da 
name' in the 'set mediatype' code path.

* 2940447 (Tracking ID: 2940446)

SYMPTOM:
The I/O may hang on a volume with space optimized snapshot if the underlying 
cache object is of a very large size ( 30 TB ). It can also lead to data 
corruption in the cache-object. The following stack is observed:
pvthread()
et_wait()
uphyswait()
uphysio()
vxvm_physio()
volrdwr()
volwrite()
vxio_write()
rdevwrite()
cdev_rdwr()
spec_erdwr() 
spec_rdwr() 
vnop_rdwr() 
vno_rw() 
rwuio() 
rdwr() 
kpwrite() 
ovlya_addr_sc_flih_main()

DESCRIPTION:
The cache volume maintains a B+ tree for mapping the offset and its actual 
location in the cache object. Copy-on-write I/O generated on snapshot volumes 
needs to determine the offset of the particular I/O in the cache object. Due to 
the incorrect type-casting, the value calculated for the large offset truncates 
to the smaller value due to the overflow, leading to data corruption.

RESOLUTION:
The code is modified to avoid overflow during the offset calculation in the 
cache object. It is advised to create multiple cache objects of around 10 TB, 
rather than creating a single cache object of a very large size.

* 2941193 (Tracking ID: 1982965)

SYMPTOM:
The file system mount operation fails when the volume is resized and the volume 
has a link to the volume. The following error messages are displayed:
# mount -V vxfs /dev/vx/dsk/<dgname>/<volname>  <mount_dir_name>
UX:vxfs fsck: ERROR: V-3-26248:  could not read from block offset devid/blknum 
<xxx/yyy>. Device containing meta data may be missing in vset or device too big 
to be read on a 32 bit system. 
UX:vxfs fsck: ERROR: V-3-20694: cannot initialize aggregate file system check 
failure, aborting ... 
UX:vxfs mount: ERROR: V-3-26883: fsck log replay exits with 1 
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/<dgname>/<volname>"before mounting

DESCRIPTION:
The vxconfigd(1M) daemon stores disk access records based on the Dynamic Multi 
Pathing (DMP) names. If the vxdg(1M) command passes a name other than DMP name 
for the device, vxconfigd(1M) daemon cannot map it to a disk access record. As 
the vxconfigd(1M) daemon cannot locate a disk access record corresponding to 
passed input name from the vxdg(1M) command, it fails the import operation.

RESOLUTION:
The code is modified so that the vxdg(1M) command converts the input name to 
DMP name before passing it to the vxconfigd(1M) daemon for further processing.

* 2941226 (Tracking ID: 2915063)

SYMPTOM:
During the detachment of a plex of a volume in the Cluster Volume Manager (CVM) 
environment, the master node panics with the following stack trace:
vol_klog_findent()
vol_klog_detach()
vol_mvcvm_cdetsio_callback()
vol_klog_start()
voliod_iohandle()
voliod_loop()

DESCRIPTION:
During the plex-detach operation, VxVM searches the plex object to be detached 
in the kernel. If any transaction is in progress on any disk group in the 
system, an incorrect plex object may be selected. This results in dereferencing 
of the invalid addresses and causes the system to panic.

RESOLUTION:
The code is modified to make sure that the correct plex object is selected.

* 2941234 (Tracking ID: 2899173)

SYMPTOM:
In a Clustered Volume Replicator (CVR) environment, an Storage Replicator Log 
(SRL) failure may cause the vxconfigd(1M) daemon to hang. This eventually 
causes the 'vradmin stoprep' command to hang.

DESCRIPTION:
The 'vradmin stoprep' command hangs because of the vxconfigd(1M) daemon that 
waits indefinitely during a transaction. The transaction waits for I/O 
completion on SRL. An error handler is generated to handle the I/O failure on 
the SRL. But if there is an ongoing transaction, the error is not handled 
properly. This causes the transaction to hang.

RESOLUTION:
The code is modified so that when an SRL failure is encountered, the 
transaction itself handles the I/O error on SRL.

* 2941237 (Tracking ID: 2919318)

SYMPTOM:
In a CVM environment with fencing enabled, wrong fencing keys are registered for
opaque disks during node join or dg import operations.

DESCRIPTION:
During cvm node join and shared dg import code path, when opaque disk 
registration happens, fencing keys in internal dg records are not in sync with
actual keys generated. This was causing wrong fencing keys registered for opaque
disks. For rest disks fencing key registration happens correctly.

RESOLUTION:
Fix is to copy correctly generated key to internal dg record for current dg
import/node join scenario and use it for disk registration.

* 2941252 (Tracking ID: 1973983)

SYMPTOM:
Relocation fails with the following error when the Data Change Object (DCO) 
plex is in a disabled state: VxVM vxrelocd ERROR V-5-2-600 Failure recovering 
<DCO> in disk group <diskgroup>

DESCRIPTION:
When a mirror-plex is added to a volume using the "vxassist snapstart" command, 
the attached DCO plex can be in DISABLED or DCOSNP state. If the enclosure is 
disabled while recovering such DCO plexes, the plex can get in to the 
DETACHED/DCOSNP state. This can result in relocation failures.

RESOLUTION:
The code is modified to handle the DCO plexes in disabled state during 
relocation.

* 2942336 (Tracking ID: 1765916)

SYMPTOM:
VxVM socket files don't have write protection from other users.
The following files are writeable by all users:
srwxrwxrwx root root /etc/vx/vold_diag/socket
srwxrwxrwx root root /etc/vx/vold_inquiry/socket
srwxrwxrwx root root /etc/vx/vold_request/socket

DESCRIPTION:
These sockets are used by the admin/support commands to 
communicate with the vxconfigd. These sockets are created by vxconfigd during 
it's start up process.

RESOLUTION:
Proper write permissions are given to VxVM socket files. Only 
vold_inquiry/socket file is still writeable by all, because it is used by many 
VxVM commands like vxprint, which are used by all users.

* 2944708 (Tracking ID: 1725593)

SYMPTOM:
The 'vxdmpadm listctlr' command does not show the count of device paths seen
through it

DESCRIPTION:
The 'vxdmpadm listctlr' currently does not show the number of device paths seen
through it. The CLI option has been enhanced to provide this information as an
additional column at the end of each line in the CLI's output

RESOLUTION:
The number of paths under each controller is counted and the value is displayed
as the last column in the 'vxdmpadm listctlr' CLI output

* 2944710 (Tracking ID: 2744004)

SYMPTOM:
When VVR is configured, vxconfigd on secondary gets hung. Any vx 
commands issued during this time does not complete.

DESCRIPTION:
Vxconfigd is waiting for IOs to drain before allowing a 
configuration change command to proceed. The IOs never drain completely 
resulting into the hang. This is because there is a deadlock where pending IOs 
are unable to start and vxconfigd keeps waiting for their completion.

RESOLUTION:
Changed the code so that this deadlock does not arise. The IOs can 
be started properly and complete allowing vxconfigd to function properly.

* 2944714 (Tracking ID: 2833498)

SYMPTOM:
vxconfigd daemon hangs in vol_ktrans_commit() while reclaim operation is in 
progress on volumes having instant snapshots. Stack trace is given below:

vol_ktrans_commit
volconfig_ioctl

DESCRIPTION:
Storage reclaim leads to the generation of special IOs (termed as Reclaim IOs), 
which can be very large in size(>4G) and unlike application IOs, these are not 
broken into smaller sized IOs. Reclaim IOs need to be tracked in snapshot maps 
if the volume has full snapshots configured. The mechanism to track reclaim IO 
is not capable of handling such large IOs causing hang.

RESOLUTION:
Code changes are made to use the alternative mechanism in Volume manager to 
track the reclaim IOs.

* 2944717 (Tracking ID: 2851403)

SYMPTOM:
System panics while unloading 'vxio' module when VxVM SmartMove feature is used
and the "vxportal" module gets reloaded (for e.g. during VxFS package upgrade).
Stack trace looks like:

vxportalclose()
vxfs_close_portal()
vol_sr_unload()
vol_unload()

DESCRIPTION:
During a smart-move operation like plex attach, VxVM opens the 'vxportal' module
to read in-use file system maps information. This file descriptor gets closed
only when 'vxio' module is unloaded. If the 'vxportal' module is unloaded and
reloaded before 'vxio', the file descriptor with 'vxio' becomes invalid and
results in a panic.

RESOLUTION:
Code changes are made to close the file descriptor for 'vxportal' after reading
free/invalid file system map information. This ensures that stale file
descriptors don't get used for 'vxportal'.

* 2944722 (Tracking ID: 2869594)

SYMPTOM:
Master node would panic with following stack after a space optimized snapshot is
refreshed or deleted and master node is selected using 'vxclustadm setmaster'

volilock_rm_from_ils
vol_cvol_unilock
vol_cvol_bplus_walk
vol_cvol_rw_start
voliod_iohandle
voliod_loop
thread_start

In addition to this, all space optimized snapshots on the corresponding cache
object may be corrupted.

DESCRIPTION:
In CVM, the master node owns the responsibility of maintaining the cache object
indexing structure for providing space optimized functionality. When a space
optimized snapshot is refreshed or deleted, the indexing structure would get
rebuilt in background after the operation is returned. When the master node is
switched using 'vxclustadm setmaster' before index rebuild is complete, both old
master and new master nodes would rebuild the index in parallel which results in
index corruption. Since the index is corrupted, the data stored on space 
optimized snapshots should not be trusted. I/Os issued on corrupted index would 
lead to panic.

RESOLUTION:
When the master role is switched using 'vxclustadm setmaster', the index rebuild
on old master node would be safely aborted. Only new master node would be 
allowed to rebuild the index.

* 2944724 (Tracking ID: 2892983)

SYMPTOM:
vxvol command dumps core with the following stack trace, if executed 
parallel to vxsnap addmir command

strcmp()
do_link_recovery
trans_resync_phase1()
vxvmutil_trans()
trans()
common_start_resync()
do_noderecover()
main()

DESCRIPTION:
During creation of link between two volumes if vxrecover is triggered, vxvol 
command may not have information about the newly created links. This leads to 
NULL pointer dereference and dumps core.

RESOLUTION:
The code has been modified to check if links information is 
properly present with vxvol command and fail operation with appropriate error 
message.

* 2944725 (Tracking ID: 2910043)

SYMPTOM:
When VxVM operations like plex attach, snapshot resync or reattach  are
performed, frequent swap-in and swap-out activities are observed due to
excessive memory allocation by vxiod daemons.

DESCRIPTION:
In VxVM operations such as plex attach, snapshot resync/reattach issue 
ATOMIC_COPY IOCTL's. Default I/O size for these operation is 1MB and VxVM 
allocates this memory from operating system. Memory allocations of such large 
size can results into swapin/swapout of pages and are not very efficient. In 
presence of lot of such operations , system may not work very efficiently.

RESOLUTION:
VxVM has its own I/O memory management module, which allocates pages from 
operating system and efficiently manage them. Modified ATOMIC_COPY code to make 
use of VxVM's internal I/O memory pool instead of directly allocating memory 
from operating system.

* 2944727 (Tracking ID: 2919720)

SYMPTOM:
The vxconfigd(1M) daemon dumps core in the rec_lock1_5() function. The 
following stack trace is observed:
rec_lock1_5()
rec_lock1()
rec_lock()
client_trans_start()
req_vol_trans()
request_loop()
main()

DESCRIPTION:
During any configuration changes in VxVM, the vxconfigd(1M) command locks all 
the objects involved in the operations to avoid any unexpected modification. 
Some objects which do not belong to the current transactions are not handled 
properly. This results in a core dump. This case is particularly observed 
during the snapshot operations of the cross disk group linked-volume snapshots.

RESOLUTION:
The code is modified to avoid the locking of the records which are not yet a 
part of the committed VxVM configuration.

* 2944729 (Tracking ID: 2933138)

SYMPTOM:
System panics with stack trace given below:

voldco_update_itemq_chunk()
voldco_chunk_updatesio_start()
voliod_iohandle()
voliod_loop()

DESCRIPTION:
While tracking IOs in snapshot MAPS information is stored in-
memory pages. For large sized IOs (such as reclaim IOs), this information can 
span across multiple pages. Sometimes the pages are not properly referenced in 
MAP update for IOs of larger size which lead to panic because of invalid page 
addresses.

RESOLUTION:
Code is modified to properly reference pages during MAP update for 
large sized IOs.

* 2944736 (Tracking ID: 2857827)

SYMPTOM:
During early boot, recovery of linked volume resize fails due to "/usr" not 
mounted.
The following error is observed:
"Cannot execute /etc/vx/type/static/vxassist: No such file or directory"

DESCRIPTION:
On HPUX in the early boot cycle, when "/usr" is not mounted and root file system 
is mounted as read-only, vxrecover(1M) invokes vxassist(1M). As vxassist(1M) is 
located in "/usr" directory, the vxrecover(1M) command fails.

RESOLUTION:
Compiled a "static" vxassist binary for the root disk support , 
especially in the early boot cycle when "/usr" is not mounted and root file 
system is mounted as read-only. The new "static" vxassist binary is kept at 
"/etc/vx/type/static/" directory. The vxrecover(1M) command invokes this new 
static vxassist(1M) binary when "/usr" is not mounted.

* 2944741 (Tracking ID: 2866059)

SYMPTOM:
When disk-resize operation fails, the error messages displayed do not give the 
exact details of the failure. The following error messages are displayed:
1. "VxVM vxdisk ERROR V-5-1-8643 Device <device-name>: resize failed: One or 
more subdisks do not fit in pub reg" 
2. "VxVM vxdisk ERROR V-5-1-8643 Device <disk-name>: resize failed: Cannot 
remove last disk in disk group"

DESCRIPTION:
When a disk-resize operation fails, both the error messages need to be enhanced 
to display the exact details of the failure.

RESOLUTION:
The code is modified to improve the error messages.
Error message (1) is modified to:
VxVM vxdisk ERROR V-5-1-8643 Device emc_clariion0_338: resize failed: One or 
more subdisks do not fit in pub region.
vxconfigd log :
01/16 02:23:23:  VxVM vxconfigd DEBUG V-5-1-0 dasup_resize_check: SD 
emc_clariion0_338-01 not contained in disk sd: start=0 end=819200, public: 
offset=0 len=786560
 
Error message (2) is modified to:
VxVM vxdisk ERROR V-5-1-0 Device emc_clariion0_338: resize failed: Cannot 
remove last disk in disk group. Resizing this device can result in data loss. 
Use -f option to force resize.

* 2962257 (Tracking ID: 2898547)

SYMPTOM:
The 'vradmind' process dumps core on the Veritas Volume Replicator (VVR) 
secondary site in a Clustered Volume Replicator (CVR) environment. The stack 
trace would look like:
__kernel_vsyscall
raise
abort
fmemopen
malloc_consolidate
delete
delete[]
IpmHandle::~IpmHandle
IpmHandle::events
main

DESCRIPTION:
When log owner service group is moved across the nodes on the primary site, it 
induces the deletion of IpmHandle of the old log owner node, as the IpmHandle 
of the new log owner node gets created. During the destruction of IpmHandle 
object, a pointer '_cur_rbufp' is not set to NULL, which can lead to freeing up 
of memory which is already freed. This causes 'vradmind' to dump core.

RESOLUTION:
The code is modified for the destructor of IpmHandle to set the pointer to NULL 
after it is deleted.

* 2974870 (Tracking ID: 2935771)

SYMPTOM:
In a Veritas Volume Replicator (VVR) environment, the 'rlinks' disconnect after 
switching the master node.

DESCRIPTION:
Sometimes switching a master node on the primary node can cause the 'rlinks' to 
disconnect. The "vradmin repstatus" command displays "paused due to network 
disconnection" as the replication status. VVR uses a connection to check if the 
secondary node is alive. The secondary node responds to these requests by 
replying back, indicating that it is alive. On a master node switch, the old 
master node fails to close this connection with the secondary node. Thus, after 
the master node switch the old master node as well as the new master node sends 
the requests to the secondary node. This causes a mismatch of connection 
numbers on the secondary node, and the secondary node does not reply to the 
requests of the new master node. Thus, it causes the 'rlinks' to disconnect.

RESOLUTION:
The code is modified to close the connection of the old master node with the 
secondary node, so that it does not send the connection requests to the 
secondary node.

* 2976946 (Tracking ID: 2919714)

SYMPTOM:
On a thin Logical Unit Number (LUN), the vxevac(1M) command returns 0 without 
migrating the unmounted-VxFS volumes.  The following error messages are 
displayed when the unmounted-VxFS volumes are processed:
VxVM vxsd ERROR V-5-1-14671 Volume v2 is configured on THIN luns and not 
mounted.
Use 'force' option, to bypass smartmove. To take advantage of smartmove for
supporting thin luns, retry this operation after mounting the volume.
 VxVM vxsd ERROR V-5-1-407 Attempting to cleanup after failure ...

DESCRIPTION:
On a thin LUN, VxVM does not move or copy data on the unmounted-VxFS volumes 
unless the 'smartmove' is bypassed.  The vxevac(1M) command error messages need 
to be enhanced to detect the unmounted-VxFS volumes on thin LUNs, and to 
support a 'force' option that allows the user to bypass the 'smartmove'.

RESOLUTION:
The vxevac script is modified to check for the unmounted-VxFS volumes on thin 
LUNs, before the migration is performed. If the unmounted-VxFS volume is 
detected, the vxevac(1M) command fails with a non-zero return code. 
Subsequently, a message is displayed that notifies the user to mount the 
volumes or bypass the 'smartmove' by specifying the 'force' option. The 
rectified error message is displayed as following:
VxVM vxevac ERROR V-5-2-0 The following VxFS volume(s) are configured on THIN 
luns and not mounted:
  v2
To take advantage of smartmove support on thin luns, retry this operation after 
mounting the volume(s).  Otherwise, bypass smartmove by specifying the '-f' 
force option.

* 2978189 (Tracking ID: 2948172)

SYMPTOM:
Execution of command "vxdisk -o thin, fssize list" can cause hang or panic.

Hang stack trace might look like:
pse_block_thread
pse_sleep_thread
.hkey_legacy_gate
volsiowait
vol_objioctl
vol_object_ioctl
voliod_ioctl
volsioctl_real
volsioctl

Panic stack trace might look like:
voldco_breakup_write_extents
volfmr_breakup_extents
vol_mv_indirect_write_start
volkcontext_process
volsiowait
vol_objioctl
vol_object_ioctl
voliod_ioctl
volsioctl_real
vols_ioctl
vols_compat_ioctl
compat_sys_ioctl
sysenter_dispatch

DESCRIPTION:
Command "vxdisk -o thin, fssize list" triggers reclaim I/Os to get file system
usage from veritas file system on veritas volume manager mounted volumes. We
currently do not support reclamation on volumes with space optimized (SO) snapshots.
But because of a bug, reclaim IOs continue to execute for volumes with SO
Snapshots leading to system panic/hang.

RESOLUTION:
Code changes are made to not to allow reclamation IOs to proceed on volumes with
SO Snapshots.

* 2979767 (Tracking ID: 2798673)

SYMPTOM:
System panic is observed with the stacktrace given below:

voldco_alloc_layout
voldco_toc_updatesio_done
voliod_iohandle
voliod_loop

DESCRIPTION:
DCO (data change object) contains metadata information required to 
start DCO volume and decode further information from the DCO volume. This 
information is stored in the 1st block of DCO volume. If this metadata 
information is incorrect/corrupted, the further processing of volume start 
resulted into panic due to divide-by-zero error in kernel.

RESOLUTION:
Code changes are made to verify the correctness of DCO volumes 
metadata information during startup. If the information read is incorrect, 
volume start operations fails.

* 2983679 (Tracking ID: 2970368)

SYMPTOM:
The SRDF-R2 WD (write-disabled) devices are shown in an error state and many 
enable and disable path messages that are generated in 
the "/etc/vx/dmpevents.log" file.

DESCRIPTION:
DMP driver disables the paths of the write-protected devices. Therefore, these 
devices are shown in an error state. The vxattachd(1M) daemon tries to online 
these devices and executes the partial-device discovery for these devices. As 
part of the partial-device discovery, enabling and disabling the paths of such 
write-protected devices, generates many path enable and disable messages in 
the "/etc/vx/dmpevents.log" file.

RESOLUTION:
The code is modified so that the paths of the write-protected devices in DMP 
are not disabled.

* 3004823 (Tracking ID: 2692012)

SYMPTOM:
When moving the subdisks by using the vxassist(1M) command or the vxevac(1M) 
command, if the disk tags are not the same for the source and the destination, 
the command fails with a generic error message. The error message does not 
provide the reason for the failure of the operation. The following error 
message is displayed:
VxVM vxassist ERROR V-5-1-438 Cannot allocate space to replace subdisks

DESCRIPTION:
When moving the subdisks using the "vxassist move" command, if no target disk 
is specified, it uses the available disks from the disk group to move. If the 
disks have the site tag set and the value of the site- tag attribute is not the 
same, the subsequent move operation using the vxassist(1M) command is expected 
to fail. However, it fails with the generic message that does not provide the 
reason for the failure of the operation.

RESOLUTION:
The code is modified so that a new error message is introduced to specify that 
the disk failure is due to the mismatch in the site-tag attribute. 
The enhanced error message is as follows:
VxVM vxassist ERROR V-5-1-0 Source and/or target disk belongs to site, can not 
move over sites

* 3004852 (Tracking ID: 2886333)

SYMPTOM:
The vxdg(1M) join operation allows mixing of clone and non-clone disks in a 
disk group. The subsequent import of a new joined disk group fails. The 
following error message is displayed:
"VxVM vxdg ERROR V-5-1-17090 Source disk group tdg and destination disk group 
tdg2 are not homogeneous, trying to Mix of cloned diskgroup to standard disk 
group or vice versa is not allowed. Please follow the vxdg (1M) man page."

DESCRIPTION:
Mixing of the clone and non-clone disk group is not allowed. The part of the 
code where the join operation is performed, executes the operation without 
validating the mix of the clone and the non-clone disk groups. This results in 
the newly joined disk group having a mix of the clone and non-clone disks. 
Subsequent import of the newly joined disk group fails.

RESOLUTION:
The code is modified so that during the disk group join operation, both the 
disk groups are checked. If a mix of clone and non-clone disk group is found, 
the join operation is aborted.

* 3005921 (Tracking ID: 1901838)

SYMPTOM:
After installation of a license key that enables multi-pathing, the state of 
the controller is shown as DISABLED in the command- line-interface (CLI) output 
for the vxdmpadm(1M) command.

DESCRIPTION:
When the multi-pathing license key is installed, the state of the active paths 
of the Logical Unit Number (LUN) is changed to the ENABLED state. However, the 
state of the controller is not updated. As a result, the state of the 
controller is shown as DISABLED in the CLI output for the vxdmpadm(1M) command.

RESOLUTION:
The code is modified so that the states of the controller and the active LUN 
paths are updated when the multi-pathing license key is installed.

* 3006262 (Tracking ID: 2715129)

SYMPTOM:
Vxconfigd hangs during Master takeover in a CVM (Clustered Volume Manager) 
environment. This results in vx command hang.

DESCRIPTION:
During Master takeover, VxVM (Veritas Volume Manager) kernel signals Vxconfigd 
with the information of new Master. Vxconfigd then proceeds with a vxconfigd-
level handshake with the nodes across the cluster. Before kernel could signal 
to vxconfigd, vxconfigd handshake mechanism got started, resulting in the hang.

RESOLUTION:
Code changes are done to ensure that vxconfigd handshake gets started only upon 
receipt of signal from the kernel.

* 3011391 (Tracking ID: 2965910)

SYMPTOM:
vxassist dumps core with following stack:
setup_disk_order()
volume_alloc_basic_setup()
fill_volume()
setup_new_volume()
make_trans()
vxvmutil_trans()
trans()
transaction()
do_make()
main()

DESCRIPTION:
When -o ordered is used, vxassist handles non-disk parameters in a 
different way. This scenario may result in invalid comparison, leading to a 
core dump.

RESOLUTION:
Code changes are made to handle the parameter comparison logic 
properly.

* 3011444 (Tracking ID: 2398416)

SYMPTOM:
vxassist dumps core with the following stack:
 merge_attributes()
 get_attributes()
 do_make()
 main()
 _start()

DESCRIPTION:
vxassist dumps core while creating volume when 
attribute 'wantmirror=ctlr' is added to the '/etc/default/vxassist' file. 
vxassist reads this default file initially and uses the attributes specified to 
allocate the storage during the volume creation. However, during the merging of 
attributes specified in the default file, it accesses NULL attribute structure 
causing the core dump.

RESOLUTION:
Necessary code changes have been done to check the attribute
structure pointer before accessing it.

* 3020087 (Tracking ID: 2619600)

SYMPTOM:
Live migration of virtual machine having SFHA/SFCFSHA stack with data disks 
fencing enabled, causes service groups configured on virtual machine to fault.

DESCRIPTION:
After live migration of virtual machine having SFHA/SFCFSHA stack with data 
disks fencing enabled is done, I/O fails on shared SAN devices with reservation 
conflict and causes service groups to fault. 

Live migration causes SCSI initiator change. Hence I/O coming from migrated 
server to shared SAN storage fails with reservation conflict.

RESOLUTION:
Code changes are added to check whether the host is fenced off from cluster. If 
host is not fenced off, then registration key is re-registered for dmpnode through 
migrated server and restart IO.

* 3025973 (Tracking ID: 3002770)

SYMPTOM:
When a SCSI-inquiry command is executed, any NULL- pointer dereference in 
Dynamic Multi-Pathing (DMP) causes the system to panic with the following stack 
trace:
dmp_aa_recv_inquiry()
dmp_process_scsireq()
dmp_daemons_loop()

DESCRIPTION:
The panic occurs when the SCSI response for the SCSI-inquiry command is 
handled. In order to determine if the path on which the SCSI-inquiry command 
issued is read-only, DMP needs to check the error buffer. However, the error 
buffer is not always prepared. So before making any further checking, DMP 
should examine if the error buffer is valid before any further checking. 
Without any error-buffer examination, the system panics with a NULL pointer.

RESOLUTION:
The code is modified to verify that the error buffer is valid.

* 3026288 (Tracking ID: 2962262)

SYMPTOM:
When DMP Native Stack support is enabled and some devices are being managed by 
a multipathing solution other than DMP, then uninstalling DMP fails with an 
error for not being able to turn off DMP Native Stack support.

 Performing DMP prestop tasks ...................................... Done
The following errors were discovered on the systems:
CPI ERROR V-9-40-3436 Failed to turn off dmp_native_support tunable on
pilotaix216. Refer to Dynamic Multi-Pathing Administrator's guide to determine
the reason for the failure and take corrective action.
VxVM vxdmpadm ERROR V-5-1-15690 Operation failed for one or more volume groups


The CLI 'vxdmpadm settune dmp_native_support=off' also fails with following 
error.

# vxdmpadm settune dmp_native_support=off
VxVM vxdmpadm ERROR V-5-1-15690 Operation failed for one or more volume groups

DESCRIPTION:
With DMP Native Stack support it is expected that devices which are being used 
by LVM are multipathed by DMP. Co-existence with other multipath solutions in 
such cases is not supported. Having some other multipath solution results in 
this error.

RESOLUTION:
Code changes have been made to not error out while turning off DMP Native 
Support if device is not being managed by DMP.

* 3027482 (Tracking ID: 2273190)

SYMPTOM:
The device discovery commands 'vxdisk scandisks' or 'vxdctl enable' issued just
after license key installation may fail and abort.

DESCRIPTION:
After addition of license key that enables multi-pathing, the state of paths
maintained at user level is incorrect.

RESOLUTION:
As a fix, whenever multi-pathing license key is installed, the operation 
updates 
the state of paths both at user level and kernel level.



INSTALLING THE PATCH
--------------------
VxVM 6.0.100.000 (GA)  must be installed before applying these  patches.
To install the patch, enter the following command:
        # swinstall -x autoreboot=true -s <patch_directory>    <patch id> 
Incase the patch is not registered, the patch can be registered
using the following command:
        # swreg -l depot <patch_directory> 
where  <patch_directory>    is the absolute path where the patch resides.
d) Please do swverify after installing the patches in order to make sure
      that the patches are installed correctly using:
        $ swverify <patch id>


REMOVING THE PATCH
------------------
To remove the patch, enter the following command:
        # swremove -x autoreboot=true <patch id>


KNOWN ISSUES
------------
* Tracking ID: 2954029

SYMPTOM: When the user tries to remove LUNs from the system using vxdiskadm option 22-2
Dynamic Reconfiguration operation 'Remove Luns', the device removal operation
might fail and report the following error message.
    "ERROR: Please make sure to remove Luns from Array"
This is due to the Dynamic Reconfiguration Tool not being able to find devices
that are not part of the legacy HP-UX I/O device tree but are seen only in the
agile I/O device tree.

WORKAROUND: Perform the following steps
    - Remove the device with no hardware (NO_HW in output of 'ioscan -fNC disk')
using rmsf(1M)
    - Run ioscan(1M)
    - Run 'vxdisk scandisks'.

* Tracking ID: 2977115

SYMPTOM: When device discovery commands (vxdctl enable or vxdisk scandisks) are
run during BCV operations, SAN migration and the like, vxconfigd queries the
operating system device tree using HP libIO library (io_init, io_search, io_end
etc). Occasionally io_search() returns a NULL string. With VxVM 5.0.1 or higher,
DDL/DMP thinks that all the devices have disappeared and removes all the arrays
and DMP devices (a.k.a. dmpnode's) that are visible to the host. This leads to
VxVM I/O errors and file systems getting disabled. In cases where VxVM manages
the root disk(s), a system hang would result. In a VCS environment, this could
trigger monitor timeouts and a possible service group fault. In a HP
Serviceguard/SGeRAC environment integrated with CVM and/or CFS, the VxVM I/O
failures would typically lead to a Serviceguard INIT and/or a CRS TOC (if the
voting disks sit on VxVM volumes). 

Please refer to the technote issued on this issue.
http://www.symantec.com/business/support/index?page=content&id=TECH200183

WORKAROUND: Running vxconfigd with multithreading disabled will effectively
avoid the issue in a standalone VxVM configuration.

* Tracking ID: 3037620

SYMPTOM: If VCS engine is stopped for the first time, the SCSI registration keys
are removed. But if VCS engine is stopped for the second time, the keys are not
removed.

WORKAROUND: None



SPECIAL INSTRUCTIONS
--------------------
NO


OTHERS
------
NONE