This page lists publically-released patches for Veritas Enterprise Products.
For Product GA build, see Veritas Entitlement Management System(VEMS) by clicking the Veritas Support 'Licensing' option.
For information on private patches, contact Veritas Technical Support.
For NetBackup Enterprise Server and NetBackup Server patches, see the NetBackup Downloads.
Patches for your product can have a variety of names. These names are based on product, component, or package names. For more information on patch naming conventions and the relationship between products, components, and packages, see the SORT online help.
infoscale-aix-Patch-7.3.1.100
Sign in if you want to rate this patch.

 Basic information
Release type: Patch
Release date: 2019-01-30
OS update support: None
Technote: None
Documentation: None
Popularity: 151 viewed    32 downloaded
Download size: 117.87 MB
Checksum: 940823215

 Applies to one or more of the following products:
InfoScale Enterprise 7.3.1 On AIX 7.2
InfoScale Foundation 7.3.1 On AIX 7.2
InfoScale Storage 7.3.1 On AIX 7.2

 Obsolete patches, incompatibilities, superseded patches, or other requirements:
None.

 Fixes the following incidents:
3929952, 3932464, 3933810, 3933815, 3933819, 3933820, 3933824, 3933828, 3933843, 3933874, 3933875, 3933877, 3933878, 3933880, 3933882, 3933883, 3933888, 3933890, 3933897, 3933899, 3933900, 3933904, 3933907, 3933910, 3934841, 3935903, 3936286, 3937536, 3937541, 3937545, 3937549, 3937550, 3937808, 3937811, 3938392, 3939812, 3942458, 3942697, 3943715, 3944902, 3947560, 3947561, 3947651, 3952304, 3952305, 3952307, 3952309, 3958475, 3958776, 3958860, 3959327, 3959451, 3959452, 3959453, 3959455, 3959458, 3959460, 3959461, 3959463, 3959471, 3959473, 3959475, 3959476, 3959477, 3959478, 3959479, 3959480, 3960383, 3960468, 3961353, 3961358, 3961359, 3961468, 3961469, 3961480, 3964315, 3966132, 3967893, 3967894, 3967895, 3967898, 3967901, 3967903, 3968821, 3968949, 3969208

 Patch ID:
VRTSvxfs.bff
VRTSdbac.bff
VRTSvxvm.bff
VRTSodm.bff
VRTSglm.bff

 Readme file  [Save As...]
                          * * * READ ME * * *
                      * * * InfoScale 7.3.1 * * *
                         * * * Patch 100 * * *
                         Patch Date: 2019-01-22


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
   * KNOWN ISSUES


PATCH NAME
----------
InfoScale 7.3.1 Patch 100


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
AIX


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSdbac
VRTSglm
VRTSodm
VRTSvxfs
VRTSvxvm


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * InfoScale Enterprise 7.3.1
   * InfoScale Foundation 7.3.1
   * InfoScale Storage 7.3.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: VRTSvxvm-7.3.1.2200
* 3933888 (3868533) IO hang happens because of a deadlock situation.
* 3958860 (3953681) Data corruption issue is seen when more than one plex of volume is detached.
* 3959451 (3913949) The DG import is failing with Split Brain after the system is rebooted or when a storage 
disturbance is seen.
* 3959452 (3931678) Memory allocation and locking optimizations during the CVM
(Cluster Volume Manager) IO shipping.
* 3959453 (3932241) VxVM (Veritas Volume Manager) creates some required files under /tmp and
/var/tmp directories. These directories could be modified by non-root users and
will affect the Veritas Volume Manager Functioning.
* 3959455 (3932496) In an FSS environment, volume creation might fail on the 
SSD devices if vxconfigd was earlier restarted.
* 3959458 (3936535) Poor performance due to frequent cache drops.
* 3959460 (3942890) IO hang as DRL flush gets into infinite loop.
* 3959461 (3946350) kmalloc-1024 and kmalloc-2048 memory consuming keeps increasing when VVR IO 
size is more than 256K.
* 3959463 (3954787) Data corruption may occur in GCO along with FSS environment on RHEL 7.5 Operating system.
* 3959471 (3932356) vxconfigd dumping core while importing DG
* 3959473 (3945115) VxVM (Veritas Volume Manager) vxassist relayout command fails for volumes with 
RAID layout.
* 3959475 (3950384) In a scenario where volume encryption at rest is enabled, data corruption may
occur if the file system size exceeds 1TB.
* 3959476 (3950675) vxdg import appears to hang forever
* 3959477 (3953845) IO hang can be experienced when there is memory pressure situation because of "vxencryptd".
* 3959478 (3956027) System panicked while removing disks from disk group because of race condition between IO stats and disk removal code.
* 3959479 (3956727) In SOLARIS DDL discovery when SCSI ioctl fails, direct disk IO on device can lead to high memory consumption and vxconfigd hangs.
* 3959480 (3957227) Disk group import succeeded, but with error message. This may cause confusion.
* 3960383 (3958062) When boot lun is migrated, enabling and disabling dmp_native_support fails.
* 3961353 (3950199) System may panic while DMP(Dynamic Multipathing) path restoration.
* 3961358 (3955101) Panic observed in GCO environment (cluster to cluster replication) during replication.
* 3961359 (3955725) Utility  to clear "failio" flag on disk after storage connectivity is back.
* 3961468 (3926067) vxassist relayout /vxassist commands may fail in Campus Cluster environment.
* 3961469 (3948140) System panic can occur if size of RTPG (Report Target Port Groups) data returned
by underlying array is greater than 255.
* 3961480 (3957549) Server panicked when tracing event because of NULL pointer check missing.
* 3964315 (3952042) vxdmp iostat memory allocation might cause memory fragmentation and pagecache drop.
* 3966132 (3960576) ODM cfgmgr rule for vxdisk scandisks is added twice in the database.
* 3967893 (3966872) Deport and rename clone DG changes the name of clone DG along with source DG
* 3967895 (3877431) System panic after filesystem expansion.
* 3967898 (3930914) Master node panic occurs while sending responding message to slave node.
* 3968949 (3968947) VxVM support on AIX 7.2 TL3
* 3932464 (3926976) Frequent loss of VxVM functionality due to vxconfigd unable to validate license.
* 3933874 (3852146) Shared DiskGroup(DG) fails to import when "-c" and "-o noreonline" options 
are
specified together
* 3933875 (3872585) System panics with storage key exception.
* 3933877 (3914789) System may panic when reclaiming on secondary in VVR environment.
* 3933878 (3918408) Data corruption when volume grow is attempted on thin reclaimable disks whose space is just freed.
* 3933880 (3864063) Application I/O hangs because of a race between the Master Pause SIO (Staging
I/O) and the Error Handler SIO.
* 3933882 (3865721) Vxconfigd may hang while pausing the replication in CVR(cluster Veritas Volume 
Replicator) environment.
* 3933883 (3867236) Application IO hang happens because of a race between Master Pause SIO(Staging IO) 
and RVWRITE1 SIO.
* 3933890 (3879324) VxVM DR tool fails to handle busy device problem while LUNs are removed from  OS
* 3933897 (3907618) vxdisk resize leads to data corruption on filesystem
* 3933899 (3910675) Disks directly attached to the system cannot be exported in FSS environment
* 3933900 (3915523) Local disk from other node belonging to private DG(diskgroup) is exported to the
node when a private DG is imported on current 
node.
* 3933904 (3921668) vxrecover command with -m option fails when executed on the slave
nodes.
* 3933907 (3873123) If the disk with CDS EFI label is used as remote
disk on the cluster node, restarting the vxconfigd
daemon on that particular node causes vxconfigd
to go into disabled state
* 3933910 (3910228) Registration of GAB(Global Atomic Broadcast) port u fails on slave nodes after 
multiple new devices are added to the system.
* 3937541 (3911930) Provide a way to clear the PGR_FLAG_NOTSUPPORTED on the device instead of using
exclude/include commands
* 3937545 (3932246) vxrelayout operation fails to complete.
* 3937549 (3934910) DRL map leaks during snapshot creation/removal cycle with dg reimport.
* 3937550 (3935232) Replication and IO hang during master takeover because of racing between log 
owner change and master switch.
* 3937808 (3931936) VxVM(Veritas Volume Manager) command hang on master node after 
restarting 
slave node.
* 3937811 (3935974) When client process shuts down abruptly or resets connection during 
communication with the vxrsyncd daemon, it may terminate
vxrsyncd daemon.
* 3938392 (3909630) OS Panic happens while registering DMP(Dynamic Multi Pathing) statistic
information.
Patch ID: VRTSdbac-7.3.1.100
* 3969208 (3969207) Veritas Infoscale does not support AIX 7.1 TL5 and AIX 7.2 TL3.
Patch ID: VRTSglm-7.3.1.1200
* 3944902 (3944901) File system unmount operation might get hang waiting for client locks when restart and scope leave api collides.
* 3952305 (3939996) In CFS environment, GLM performance enhancement for gp_gen_lock 
bottleneck/contention.
* 3952307 (3940838) Print the master nodeid information of the stuck lock in the output of glmdump.
* 3959327 (3959325) In case of cascade node reboot scenario NULL pointer dereference was hit in GLM code path.
* 3967903 (3932845) Temporary files are being created in /tmp
Patch ID: VRTSodm-7.3.1.2200
* 3967901 (3932804) Temporary files are being created in /tmp
Patch ID: VRTSvxfs-7.3.1.2200
* 3929952 (3929854) Enabling event notification support on CFS for Weblogic watchService on 
SOLARIS platform
* 3943715 (3944884) ZFOD extents shouldn't be pushed on clones in case of logged 
writes.
* 3947560 (3947421) DLV upgrade operation fails while upgrading Filesystem from DLV 9 to DLV 10.
* 3947561 (3947433) While adding a volume (part of vset) in already mounted filesystem, fsvoladm
displays error.
* 3947651 (3947648) Mistuning of vxfs_ninode and vx_bc_bufhwm to very small 
value.
* 3952304 (3925281) Hexdump the incore inode data and piggyback data when inode 
revalidation fails.
* 3952309 (3941942) Unable to handle kernel NULL pointer dereference while freeing fiostats.
* 3958475 (3958461) Man page changes to support updated DLVs
* 3958776 (3958759) fsadm "-i" option can't be used vxfs7.3.1 for Solaris env.
* 3960468 (3957092) System panic with spin_lock_irqsave thru splunkd.
* 3967894 (3932163) Temporary files are being created in /tmp
* 3968821 (3968885) The fsadm utility might hit userspace core
* 3933810 (3830300) Degraded CPU performance during backup of Oracle archive logs
on CFS vs local filesystem
* 3933815 (3902812) Mounting a vxfs file system on large memory AIX server 
may fail.
* 3933819 (3879310) The file system may get corrupted after a failed vxupgrade.
* 3933820 (3894712) ACL permissions are not inherited correctly on cluster 
file system.
* 3933824 (3908785) System panic observed because of null page address in writeback 
structure in case of 
kswapd process.
* 3933828 (3921152) Performance drop caused by vx_dalloc_flush().
* 3933843 (3926972) A recovery event can result in a cluster wide hang.
* 3934841 (3930267) Deadlock between fsq flush threads and writer threads.
* 3935903 (3933763) Oracle Hang in VxFS.
* 3936286 (3936285) fscdsconv command may fsil the conversion for disk layout version(DLV) 12 and above.
* 3937536 (3940516) File resize thread loops infinitely for file resize operation crossing 32 bit
boundary.
* 3939812 (3939224) Removing file on VxFS hangs on latest release of AIX TL.
* 3942458 (3912203) cafs module is not getting loaded automatically on VRTSvxfs patch installation
* 3942697 (3940846) vxupgrade fails while upgrading the filesystem from disk
layout version(DLV) 9 to DLV 10


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

Patch ID: VRTSvxvm-7.3.1.2200

* 3933888 (Tracking ID: 3868533)

SYMPTOM:
IO hang happens when starting replication. VXIO deamon hang with stack like 
following:

vx_cfs_getemap at ffffffffa035e159 [vxfs]
vx_get_freeexts_ioctl at ffffffffa0361972 [vxfs]
vxportalunlockedkioctl at ffffffffa06ed5ab [vxportal]
vxportalkioctl at ffffffffa06ed66d [vxportal]
vol_ru_start at ffffffffa0b72366 [vxio]
voliod_iohandle at ffffffffa09f0d8d [vxio]
voliod_loop at ffffffffa09f0fe9 [vxio]

DESCRIPTION:
While performing DCM replay in case Smart Move feature is enabled, VxIO 
kernel needs to issue IOCTL to VxFS kernel to get file system free region. 
VxFS kernel needs to clone map by issuing IO to VxIO kernel to complete this 
IOCTL. Just at the time RLINK disconnection happened, so RV is serialized to 
complete the disconnection. As RV is serialized, all IOs including the 
clone map IO form VxFS is queued to rv_restartq, hence the deadlock.

RESOLUTION:
Code changes have been made to handle the dead lock situation.

* 3958860 (Tracking ID: 3953681)

SYMPTOM:
Data corruption issue is seen when more than one plex of volume is detached.

DESCRIPTION:
When a plex of volume gets detached, DETACH map gets enabled in the DCO (Data Change Object). The incoming IO's are tracked in DRL (Dirty Region Log) and then asynchronously copied to DETACH map for tracking.
If one more plex gets detached then it might happen that some of the new incoming regions are missed in the DETACH map of the previously detached plex.
This leads to corruption when the disk comes back and plex resync happens using corrupted DETACH map.

RESOLUTION:
Code changes are done to correctly track the IO's in the DETACH map of previously detached plex and avoid corruption.

* 3959451 (Tracking ID: 3913949)

SYMPTOM:
The DG import is failing with Split Brain after the system is rebooted or when a storage 
disturbance is seen.

The DG import may fail due to split brain with following messages in syslog:
V-5-1-9576 Split Brain. da id is 0.1, while dm id is 0.0 for dm
B000F8BF40FF000043042DD4A5
V-5-1-9576 Split Brain. da id is 0.1, while dm id is 0.0 for dm
B000F8BF40FF00004003FE9356

DESCRIPTION:
When a disk is detached, the SSB ID of the remaining DA and DM records
shall be incremented. Unfortunately for some reason, the SSB ID of DA 
record is only incremented, but the SSB ID of DM record is NOT updated. 
One probable reason may be because the disks get detached before updating
the DM records.

RESOLUTION:
A work-around option is provided to bypass the SSB checks while importing the DG, the user
can import the DG with 'vxdg -o overridessb import <dgname>' command if a false split brain
happens.
For using '-o overridessb', one should confirm that all DA records 
of the DG are available in ENABLED state and are differing with DM records against 
SSB by 1.

* 3959452 (Tracking ID: 3931678)

SYMPTOM:
There was a performance issue while shipping IO to the remote disks 
due
to non-cached memory allocation and the redundant locking.

DESCRIPTION:
There was redundant locking while checking if the flow control is
enabled by GAB during IO shipping. The redundant locking is optimized.
Additionally, the memory allocation during IO shipping is optimized.

RESOLUTION:
Changes are done in VxVM code to optimize the memory allocation and reduce the
redundant locking to improve the performance.

* 3959453 (Tracking ID: 3932241)

SYMPTOM:
VxVM (Veritas Volume Manager) creates some required files under /tmp
and /var/tmp directories.

DESCRIPTION:
VxVM (Veritas Volume Manager) creates some required files under /tmp and
/var/tmp directories. 
The non-root users have access to these folders, and they may accidently modify,
move or delete those files.
Such actions may interfere with the normal functioning of the Veritas Volume
Manager.

RESOLUTION:
This Hot Fix address the issue by moving the required Veritas Volume Manager
files to secure location.

* 3959455 (Tracking ID: 3932496)

SYMPTOM:
In an FSS environment, volume creation might fail on SSD devices if 
vxconfigd was earlier restarted on the master node.

DESCRIPTION:
In an FSS environment, if a shared disk group is created using 
SSD devices and vxconfigd is restarted, then the volume creation might fail. 
The problem is because the mediatype attribute of the disk was NOT propagated 
from kernel to vxconfigd while restarting the vxconfigd daemon.

RESOLUTION:
Changes are done in VxVM code to correctly propagate mediatype for remote 
devices during vxconfigd startup.

* 3959458 (Tracking ID: 3936535)

SYMPTOM:
The IO performance is poor due to frequent cache drops on snapshots 
configured system.

DESCRIPTION:
On VxVM snapshots configured system, along with the IO going, DCO map update 
will happen and it could allocate lots of chucks of pages memory, which 
triggered kswapd to swap the cache memory out, so cache drops were seen.

RESOLUTION:
Code changes are done to allocate big size memory for DCO map update without 
triggering memory swap out.

* 3959460 (Tracking ID: 3942890)

SYMPTOM:
In case of Data Change Object (DCO) configured, IO hang may happen with 
heavy IO
load plus slow Storage Replicator Log (SRL) 
flush.

DESCRIPTION:
Application IO needs to wait for DRL flush complete to proceed. Due to a 
defect
in DRL 
code, DRL flush couldn't proceed in case there're large amount of IO which
exceeded 
avaiable DRL chunks, hence IO hang.

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

* 3959461 (Tracking ID: 3946350)

SYMPTOM:
kmalloc-1024 and kmalloc-2048 memory consuming keeps increasing when Veritas 
Volume Replicator (VVR) IO size is more than 256K.

DESCRIPTION:
In case of VVR , if I/O size is more than 256K, then the IO is broken into 
child 
IOs. Due to code defect, the allocated space doesn't got freed when splited 
IOs are completed.

RESOLUTION:
The code is modified to free VxVM allocated memory after split IOs competed.

* 3959463 (Tracking ID: 3954787)

SYMPTOM:
On a RHEL 7.5 FSS environment with GCO configured having NVMe devices and Infiniband network, data corruption might occur when sending the IO from Master to slave node.

DESCRIPTION:
In the recent RHEL 7.5 release, linux stopped allowing IO on the underlying NVMe device which has gaps in between BIO vectors. In case of VVR, the SRL header of 3 blocks is added to the BIO . When the BIO is sent through LLT to the other node because of LLT limitation of 32 fragments can lead to unalignment of BIO vectors. When this unaligned BIO is sent to the underlying NVMe device, the last 3 blocks of the BIO are skipped and not written to the disk on the slave node. This leads to incomplete data written on the slave node which leads to data corruption.

RESOLUTION:
Code changes have been done to handle this case and send the BIO aligned to the underlying NVMe device.

* 3959471 (Tracking ID: 3932356)

SYMPTOM:
In a two node cluster vxconfigd dumps core while importing the DG -

 dapriv_da_alloc ()
 in setup_remote_disks ()
 in volasym_remote_getrecs ()
 req_dg_import ()
 vold_process_request ()
 start_thread () from /lib64/libpthread.so.0
 from /lib64/libc.so.6

DESCRIPTION:
The vxconfigd is dumping core due to address alignment issue.

RESOLUTION:
The alignment issue is fixed.

* 3959473 (Tracking ID: 3945115)

SYMPTOM:
VxVM vxassist relayout command fails for volumes with RAID layout with the 
following message:
VxVM vxassist ERROR V-5-1-2344 Cannot update volume <vol-name>
VxVM vxassist ERROR V-5-1-4037 Relayout operation aborted. (7)

DESCRIPTION:
During relayout operation, the target volume inherits the attributes from 
original volume. One of those attributes is read policy. In case if the layout 
of original volume is RAID, it will set RAID read policy. RAID read policy 
expects the target volume to have appropriate log required for RAID policy. 
Since the target volume is of different layout, it does not have the log 
present and hence relayout operation fails.

RESOLUTION:
Code changes have been made to set the read policy to SELECT for target 
volumes rather than inheriting it from original volume in case original volume 
is of RAID layout.

* 3959475 (Tracking ID: 3950384)

SYMPTOM:
In a scenario where volume data encryption at rest is enabled, data corruption
may occur if the file system size exceeds 1TB and the data is located in a file
extent which has an extent size bigger than 256KB.

DESCRIPTION:
In a scenario where data encryption at rest is enabled, data corruption may
occur when both the following cases are satisfied:
- File system size is over 1TB
- The data is located in a file extent which has an extent size bigger than 256KB
This issue occurs due to a bug which causes an integer overflow for the offset.

RESOLUTION:
As a part of this fix, appropriate code changes have been made to improve data
encryption behavior such that the data corruption does not occur.

* 3959476 (Tracking ID: 3950675)

SYMPTOM:
The following command is not progressing and appears stuck.

# vxdg import <dg-name>

DESCRIPTION:
The DG import command is found to be non-progressing some times on backup system.
The analysis of the situation has shown that devices belonging to the DG are
found to be reporting "devid mismatch" more than once, due to not following
graceful DR steps. An erroneous processing of such situation resulted in not
allowing IOs on such devices leading to DG import hang.

RESOLUTION:
The code processing the "devid mismatch" is rectified.

* 3959477 (Tracking ID: 3953845)

SYMPTOM:
IO hang can be experienced when there is memory pressure situation because of "vxencryptd".

DESCRIPTION:
For large size IO, VxVM(Veritas Volume Manager)  tries to acquire contiguous pages in memory for some of its internal data structures. In heavy memory pressure scenarios, there can be a possibility that contiguous pages are not available. In such case it waits till the required pages are available for allocation and does not process the request further. This causes IO hang kind of situation where IO can't progress further or progresses very slowly.

RESOLUTION:
Code changes are done to avoid the IO hang situation.

* 3959478 (Tracking ID: 3956027)

SYMPTOM:
System panicked while removing disks from disk group, stack likes the following:

[0000F4C4]___memmove64+0000C4 ()
[077ED5FC]vol_get_one_io_stat+00029C ()
[077ED8FC]vol_get_io_stats+00009C ()
[077F1658]volinfo_ioctl+0002B8 ()
[07809954]volsioctl_real+0004B4 ()
[079014CC]volsioctl+00004C ()
[07900C40]vols_ioctl+000120 ()
[00605730]rdevioctl+0000B0 ()
[008012F4]spec_ioctl+000074 ()
[0068FE7C]vnop_ioctl+00005C ()
[0069A5EC]vno_ioctl+00016C ()
[006E2090]common_ioctl+0000F0 ()
[00003938]mfspurr_sc_flih01+000174 ()

DESCRIPTION:
IO stats function was trying to access a freed disk that was being removed from disk group,  result in panic for illegal memory access.

RESOLUTION:
Code changes have been made to resolve this race condition.

* 3959479 (Tracking ID: 3956727)

SYMPTOM:
In SOLARIS DDL discovery when SCSI ioctl fails, direct disk IO on device can lead to high memory consumption and vxconfigd hangs.

DESCRIPTION:
In SOLARIS DDL discovery when SCSI ioctls on disk for private region IO fails we attempt a direct disk read/write to the disk.
Due to compiler issue this direct read/write gets invalid arguments which leads to high memory consumption and vxconfigd hangs.

RESOLUTION:
Changes are done in VxVM code to ensure correct arguments are passed to disk read/write.

* 3959480 (Tracking ID: 3957227)

SYMPTOM:
Disk group import succeeded, but with below error message:

vxvm:vxconfigd: [ID ** daemon.error] V-5-1-0 dg_import_name_to_dgid: Found dgid = **

DESCRIPTION:
When do disk group import, two configuration copies may be found. Volume Manager will use the latest configuration copy, then print a message to indicate this scenario. Due to wrong log level, this message got printed in error category.

RESOLUTION:
Code changes has been made to suppress this harmless message.

* 3960383 (Tracking ID: 3958062)

SYMPTOM:
After migrating boot lun, disabling dmp_native_support fails with following error.

VxVM vxdmpadm ERROR V-5-1-15883 check_bosboot open failed /dev/r errno 2
VxVM vxdmpadm ERROR V-5-1-15253 bosboot would not succeed, please run  
manually to find the cause of failure
VxVM vxdmpadm ERROR V-5-1-15251 bosboot check failed
VxVM vxdmpadm INFO V-5-1-18418 restoring protofile
+ final_ret=18
+ f_exit 18
VxVM vxdmpadm ERROR V-5-1-15690 Operation failed for one or more volume 
groups

VxVM vxdmpadm ERROR V-5-1-15686 The following VG(s) could not be migrated as 
could not disable DMP support for LVM bootability -
        rootvg

DESCRIPTION:
After performing the boot lun migration, while enabling/disabling the DMP native support, 
VxVM was performing 'bosboot' verification with the old boot disk name, instead of the migrated disk. 
The reason was one AIX OS command was returning the old boot disk name.

RESOLUTION:
The code is changed to use correct OS command to get the boot disk name after migration.

* 3961353 (Tracking ID: 3950199)

SYMPTOM:
System may panic with following stack while DMP(Dynamic Mulitpathing) path 
restoration:

#0 [ffff880c65ea73e0] machine_kexec at ffffffff8103fd6b
 #1 [ffff880c65ea7440] crash_kexec at ffffffff810d1f02
 #2 [ffff880c65ea7510] oops_end at ffffffff8154f070
 #3 [ffff880c65ea7540] no_context at ffffffff8105186b
 #4 [ffff880c65ea7590] __bad_area_nosemaphore at ffffffff81051af5
 #5 [ffff880c65ea75e0] bad_area at ffffffff81051c1e
 #6 [ffff880c65ea7610] __do_page_fault at ffffffff81052443
 #7 [ffff880c65ea7730] do_page_fault at ffffffff81550ffe
 #8 [ffff880c65ea7760] page_fault at ffffffff8154e2f5
    [exception RIP: _spin_lock_irqsave+31]
    RIP: ffffffff8154dccf  RSP: ffff880c65ea7818  RFLAGS: 00210046
    RAX: 0000000000010000  RBX: 0000000000000000  RCX: 0000000000000000
    RDX: 0000000000200246  RSI: 0000000000000040  RDI: 00000000000000e8
    RBP: ffff880c65ea7818   R8: 0000000000000000   R9: ffff8824214ddd00
    R10: 0000000000000002  R11: 0000000000000000  R12: ffff88302d2ce400
    R13: 0000000000000000  R14: ffff880c65ea79b0  R15: ffff880c65ea79b7
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #9 [ffff880c65ea7820] dmp_open_path at ffffffffa07be2c5 [vxdmp]
#10 [ffff880c65ea7980] dmp_restore_node at ffffffffa07f315e [vxdmp]
#11 [ffff880c65ea7b00] dmp_revive_paths at ffffffffa07ccee3 [vxdmp]
#12 [ffff880c65ea7b40] gendmpopen at ffffffffa07cbc85 [vxdmp]
#13 [ffff880c65ea7c10] dmpopen at ffffffffa07cc51d [vxdmp]
#14 [ffff880c65ea7c20] dmp_open at ffffffffa07f057b [vxdmp]
#15 [ffff880c65ea7c50] __blkdev_get at ffffffff811d7f7e
#16 [ffff880c65ea7cb0] blkdev_get at ffffffff811d82a0
#17 [ffff880c65ea7cc0] blkdev_open at ffffffff811d8321
#18 [ffff880c65ea7cf0] __dentry_open at ffffffff81196f22
#19 [ffff880c65ea7d50] nameidata_to_filp at ffffffff81197294
#20 [ffff880c65ea7d70] do_filp_open at ffffffff811ad180
#21 [ffff880c65ea7ee0] do_sys_open at ffffffff81196cc7
#22 [ffff880c65ea7f30] compat_sys_open at ffffffff811eee9a
#23 [ffff880c65ea7f40] symev_compat_open at ffffffffa0c9b08f

DESCRIPTION:
System panic can be encounter due to race condition.  There is a possibility 
that a path picked by DMP restore daemon for processing
may be deleted before the restoration process is complete. Hence when the 
restoration daemon tries to access the path properties it leads to system panic 
as the path properties are already freed.

RESOLUTION:
Code changes are done to handle the race condition.

* 3961358 (Tracking ID: 3955101)

SYMPTOM:
Server might panic in a GCO environment with the following stack:

nmcom_server_main_tcp()
ttwu_do_wakeup()
ttwu_do_activate.constprop.90()
try_to_wake_up()
update_curr()
update_curr()
account_entity_dequeue()
 __schedule()
nmcom_server_proc_tcp()
kthread()
kthread_create_on_node()
ret_from_fork()
kthread_create_on_node()

DESCRIPTION:
There are recent changes done in the code to handle Dynamic port changes i.e deletion and addition of ports can now happen dynamically. It might happen that while accessing the port, it was deleted in the background by other thread. This would lead to a panic in the code since the port to be accessed has been already deleted.

RESOLUTION:
Code changes have been done to take care of this situation and check if the port is available before accessing it.

* 3961359 (Tracking ID: 3955725)

SYMPTOM:
Utility to clear "failio" flag on disk after storage connectivity is back.

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 disk is bad or slow and it sets "failio" flag on the disk. Because of this  flag, all the subsequent I/Os fail with the No such device error. After the connectivity is back, the "failio" needs to clear using "vxdisk  <disk_name> failio=off". We have come up with a utility  "vxcheckfailio" which will
clear the "failio" flag for all the disks whose all paths are enabled.

RESOLUTION:
Code changes are done to add utility "vxcheckfailio" that will clear the "failio" flag on the disks.

* 3961468 (Tracking ID: 3926067)

SYMPTOM:
In a Campus Cluster environment, vxassist relayout command may fail with 
following error:
VxVM vxassist ERROR V-5-1-13124  Site  offline or detached
VxVM vxassist ERROR V-5-1-4037 Relayout operation aborted. (20)

vxassist convert command also might fail with following error:
VxVM vxassist ERROR V-5-1-10128  No complete plex on the site.

DESCRIPTION:
For vxassist "relayout" and "convert" operations in Campus Cluster 
environment, VxVM (Veritas Volume Manager) needs to sort the plexes of volume 
according to sites. When the number of 
plexes of volumes are greater than 100, the sorting of plexes fail due to a 
bug in the code. Because of this sorting failure, vxassist relayout/convert 
operations fail.

RESOLUTION:
Code changes are done to properly sort the plexes according to site.

* 3961469 (Tracking ID: 3948140)

SYMPTOM:
System may panic if RTPG data returned by the array is greater than 255 with
below stack:

dmp_alua_get_owner_state()
dmp_alua_get_path_state()
dmp_get_path_state()
dmp_check_path_state()
dmp_restore_callback()
dmp_process_scsireq()
dmp_daemons_loop()

DESCRIPTION:
The size of the buffer given to RTPG SCSI command is currently 255 bytes. But the
size of data returned by underlying array for RTPG can be greater than 255
bytes. As a result
incomplete data is retrieved (only the first 255 bytes) and when trying to read
the RTPG data, it causes invalid access of memory resulting in error while
claiming the devices. This invalid access of memory may lead to system panic.

RESOLUTION:
The RTPG buffer size has been increased to 1024 bytes for handling this.

* 3961480 (Tracking ID: 3957549)

SYMPTOM:
Server panicked when resyncing mirror volume with the following stack:

voliot_object_event+0x2e0
vol_oes_sio_start+0x80
voliod_iohandle+0x30
voliod_loop+0x248
thread_start+4

DESCRIPTION:
In case IO error happened during mirror resync, need to log trace event for the IO error. As the IO is from mirror resync, KIO should be NULL. But NULL pointer check for KIO is missed during logging trace event, hence the panic.

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

* 3964315 (Tracking ID: 3952042)

SYMPTOM:
dmpevents.log is flooding with below messages:
Tue Jul 11 09:28:36.620: Lost 12 DMP I/O statistics records
Tue Jul 11 10:05:44.257: Lost 13 DMP I/O statistics records
Tue Jul 11 10:10:05.088: Lost 6 DMP I/O statistics records
Tue Jul 11 11:28:24.714: Lost 6 DMP I/O statistics records
Tue Jul 11 11:46:35.568: Lost 1 DMP I/O statistics records
Tue Jul 11 12:04:10.267: Lost 13 DMP I/O statistics records
Tue Jul 11 12:04:16.298: Lost 5 DMP I/O statistics records
Tue Jul 11 12:44:05.656: Lost 31 DMP I/O statistics records
Tue Jul 11 12:44:38.855: Lost 2 DMP I/O statistics records

DESCRIPTION:
when DMP (Dynamic Multi-Pathing) expand iostat table, DMP allocates a new larger table, replaces the old table with the new one and frees the old one. This 
increases the possibility of memory fragmentation.

RESOLUTION:
The code is modified to increase the initial value for iostat table.

* 3966132 (Tracking ID: 3960576)

SYMPTOM:
With installation of the said VxVM patch 7.3.1.100, one more rule got added incorrectly.

DESCRIPTION:
The rules are added directly through the file vxdmp.PdDv. The install/upgrade scripts take care of adding these rules using the odmadd command. So ideally if we see all the rules should be added twice like the current rule. But in the install/upgrade scripts other rules are removed before they are added 
using the odmadd command.

RESOLUTION:
We need to add an entry similar to these for the "vxdisk scandisks" rule as well in the install/upgrade script. Once that is done the error for the duplicate 
entry would go away.

* 3967893 (Tracking ID: 3966872)

SYMPTOM:
The deport and rename of a cloned DG is renaming both source and cloned DG.

DESCRIPTION:
On a DR site both source and clone DGs can co-exist, where the source DG is deported while
the cloned DG is in imported state. Now the user attempts to deport-rename the cloned DG,
then names of both source and cloned DGs are changed.

RESOLUTION:
The deport code is fixed to take care of the situation.

* 3967895 (Tracking ID: 3877431)

SYMPTOM:
System panic after filesystem expansion with below stack:
#volkio_to_kio_copy at [vxio]
#volsio_nmstabilize at [vxio]
#vol_rvsio_preprocess at [vxio]
#vol_rv_write1_start at [vxio]
#voliod_iohandle at [vxio]
#voliod_loop at [vxio]

DESCRIPTION:
Veritas Volume Replicator (VVR) will generate different IOs in different stages. In some cases, parent IO doesn't wait till child IO is freed. Due a bug, a child IO accessed a freed parent IO's memory, further caused system panic.

RESOLUTION:
Code changes have been made to avoid modifying freed memory.

* 3967898 (Tracking ID: 3930914)

SYMPTOM:
Master node panicked with following stack:
[exception RIP: vol_kmsg_respond_common+111]
#9 [ffff880898513d18] vol_kmsg_respond at ffffffffa08fd8af [vxio]
#10 [ffff880898513d30] vol_rv_wrship_srv_done at ffffffffa0b9a955 [vxio]
#11 [ffff880898513d98] volkcontext_process at ffffffffa09e7e5c [vxio]
#12 [ffff880898513de0] vol_rv_write2_start at ffffffffa0ba3489 [vxio]
#13 [ffff880898513e50] voliod_iohandle at ffffffffa09e743a [vxio]
#14 [ffff880898513e88] voliod_loop at ffffffffa09e7640 [vxio]
#15 [ffff880898513ec8] kthread at ffffffff810a5b8f
#16 [ffff880898513f50] ret_from_fork at ffffffff81646a98

DESCRIPTION:
In case sending response for write shipping request to slave node, it may end up using the stale pointer of message handler, in which message block is NULL. When dereferencing the message block panic occurs.

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

* 3968949 (Tracking ID: 3968947)

SYMPTOM:
VxVM support on AIX 7.2 TL3

DESCRIPTION:
The AIX 7.2 TL3 is new release and hence  VxVM module is compiled with this OS bits .

RESOLUTION:
Compiled VxVM with AIX 7.2 TL3 bits .

* 3932464 (Tracking ID: 3926976)

SYMPTOM:
Excessive number of connections are found in open state causing FD leak and
eventually reporting license errors.

DESCRIPTION:
The vxconfigd reports license errors as it fails to open the license files. The
failure to open is due to FD exhaustion, caused by excessive FIFO connections
left in open state.

The FIFO connections used to communicate with vxconfigd by clients (vx
commands). Usually these should get closed once the client exits. One of such
client "vxdclid" which is a daemon connecting frequently and leaving the
connection is open state, causing FD leak. 

This issue is applicable to Solaris platform only.

RESOLUTION:
One of the API, a library call is leaving the connection in open state while
leaving, which is fixed.

* 3933874 (Tracking ID: 3852146)

SYMPTOM:
In a CVM cluster, when importing a shared diskgroup specifying both -c and -o
noreonline options, the following error may be returned: 
VxVM vxdg ERROR V-5-1-10978 Disk group <dgname>: import failed: Disk for disk
group not found.

DESCRIPTION:
The -c option will update the disk ID and disk group ID on the private region
of the disks in the disk group being imported. Such updated information is not
yet seen by the slave because the disks have not been re-onlined (given that
noreonline option is specified). As a result, the slave cannot identify the
disk(s) based on the updated information sent from the master, causing the
import to fail with the error Disk for disk group not found.

RESOLUTION:
The code is modified to handle the working of the "-c" and "-o noreonline"
options together.

* 3933875 (Tracking ID: 3872585)

SYMPTOM:
System running with VxFS and VxVM panics with storage key exception with the 
following stack:

simple_lock
dispatch
flih_util
touchrc
pin_seg_range
pin_com
pinx_plock
plock_pinvec
plock
mfspurr_sc_flih01

DESCRIPTION:
The xntpd process mounted on a vxfs filesystem could panic with storage key 
exception. The xntpd binary page faulted and did an IO, after which the storage 
key exception was detected OS as it couldn't locate it's keyset. From the code 
review it was found that in a few error cases in the vxvm, the storage key may 
not be restored after they're replaced.

RESOLUTION:
Do storage key restore even when in the error cases in vxio and dmp layer.

* 3933877 (Tracking ID: 3914789)

SYMPTOM:
System may panic when reclaiming on secondary in VVR(Veritas Volume Replicator)
environment. It's due to accessing invalid address, error message is similiar to
"data access MMU miss".

DESCRIPTION:
VxVM maintains a linked list to keep memory segment information. When accessing
its content with certain offset, linked list is traversed. Due to code defect
when offset is equal to segment chunk size, end of such segement is returned
instead of start of next segment. It can result silent memory corruption because
it tries to access memory out of its boundary. System can panic when out of
boundary address isn't allocated yet.

RESOLUTION:
Code changes have been made to fix the out-of-boundary access.

* 3933878 (Tracking ID: 3918408)

SYMPTOM:
Data corruption when volume grow is attempted on thin reclaimable disks whose space is just freed.

DESCRIPTION:
When the space in the volume is freed by deleting some data or subdisks, the corresponding subdisks are marked for 
reclamation. It might take some time for the periodic reclaim task to start if not issued manually. In the meantime, if 
same disks are used for growing another volume, it can happen that reclaim task will go ahead and overwrite the data 
written on the new volume. Because of this race condition between reclaim and volume grow operation, data corruption 
occurs.

RESOLUTION:
Code changes are done to handle race condition between reclaim and volume grow operation. Also reclaim is skipped for 
those disks which have been already become part of new volume.

* 3933880 (Tracking ID: 3864063)

SYMPTOM:
Application I/O hangs after the Master Pause command is issued.

DESCRIPTION:
Some flags (VOL_RIFLAG_DISCONNECTING or VOL_RIFLAG_REQUEST_PENDING) in VVR
(Veritas Volume Replicator) kernel are not cleared because of a race between the
Master Pause SIO and the Error Handler SIO. This causes the RU (Replication
Update) SIO to fail to proceed, which leads to I/O hang.

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

* 3933882 (Tracking ID: 3865721)

SYMPTOM:
Vxconfigd hang in dealing transaction while pausing the replication in 
Clustered VVR environment.

DESCRIPTION:
In Clustered VVR (CVM VVR) environment, while pausing replication which is in 
DCM (Data Change Map) mode, the master pause SIO (staging IO) can not finish 
serialization since there are metadata shipping SIOs in the throttle queue 
with the activesio count added. Meanwhile, because master pause 
SIOs SERIALIZE flag is set, DCM flush SIO can not be started to flush the 
throttle queue. It leads to a dead loop hang state. Since the master pause 
routine needs to sync up with transaction routine, vxconfigd hangs in 
transaction.

RESOLUTION:
Code changes were made to flush the metadata shipping throttle queue if master 
pause SIO can not finish serialization.

* 3933883 (Tracking ID: 3867236)

SYMPTOM:
Application IO hang happens after issuing Master Pause command.

DESCRIPTION:
The flag VOL_RIFLAG_REQUEST_PENDING in VVR(Veritas Volume Replicator) kernel is 
not cleared because of a race between Master Pause SIO and RVWRITE1 SIO resulting 
in RU (Replication Update) SIO to fail to proceed thereby causing IO hang.

RESOLUTION:
Code changes have been made to handle the race condition.

* 3933890 (Tracking ID: 3879324)

SYMPTOM:
VxVM(Veritas Volume Manager) DR(Dynamic Reconfiguration) tool fails to 
handle busy device problem while LUNs are removed from OS

DESCRIPTION:
OS devices may still be busy after removing them from OS, it fails 'luxadm -
e offline <disk>' operation and leaves staled entries in 'vxdisk list' 
output 
like:
emc0_65535   auto            -            -            error
emc0_65536   auto            -            -            error

RESOLUTION:
Code changes have been done to address busy devices issue.

* 3933897 (Tracking ID: 3907618)

SYMPTOM:
vxdisk resize leads to data corruption on filesystem with MSDOS labelled disk having VxVM sliced format.

DESCRIPTION:
vxdisk resize changes the geometry on the device if required. When vxdisk resize is in progress, absolute offsets i.e offsets starting 
from start of the device are used. For MSDOS labelled disk, the full disk is devoted on Slice 4 but not slice 0. Thus when IO is 
scheduled on the device an extra 32 sectors gets added to the IO which is not required since we are already starting the IO from start of 
the device. This leads to data corruption since the IO on the device shifted by 32 sectors.

RESOLUTION:
Code changes have been made to not add 32 sectors to the IO when vxdisk resize is in progress to avoid corruption.

* 3933899 (Tracking ID: 3910675)

SYMPTOM:
Disks directly attached to the system cannot be exported in FSS environment

DESCRIPTION:
In some cases, UDID (Unique Disk Identifier) of the disk directly connected to a
cluster node might not be globally 
unique i.e another different disk might have a similar UDID which is directly
connected to a different node in the 
cluster. This leads to issues while exporting the device in FSS (Flexible
Storage Sharing) environment since two 
different disks have the same UDID which is not expected.

RESOLUTION:
A new option "islocal=yes" has been added to the vxddladm addjbod command so
that hostguid will get appended to UDID to make it unique.

* 3933900 (Tracking ID: 3915523)

SYMPTOM:
Local disk from other node belonging to private DG is exported to the node when
a private DG is imported on current node.

DESCRIPTION:
When we try to import a DG, all the disks belonging to the DG are automatically
exported to the current node so as to make sure 
that the DG gets imported. This is done to have same behaviour as SAN with local
disks as well. Since we are exporting all disks in 
the DG, then it happens that disks which belong to same DG name but different
private DG on other node get exported to current node 
as well. This leads to wrong disk getting selected while DG gets imported.

RESOLUTION:
Instead of DG name, DGID (diskgroup ID) is used to decide whether disk needs to
be exported or not.

* 3933904 (Tracking ID: 3921668)

SYMPTOM:
Running the vxrecover command with -m option fails when run on the
slave node with message "The command can be executed only on the master."

DESCRIPTION:
The issue occurs as currently vxrecover -g <dgname> -m command on shared
disk groups is not shipped using the command shipping framework from CVM
(Cluster Volume Manager) slave node to the master node.

RESOLUTION:
Implemented code change to ship the vxrecover -m command to the master
node, when its triggered from the slave node.

* 3933907 (Tracking ID: 3873123)

SYMPTOM:
When remote disk on node is EFI disk, vold enable fails.
And following message get logged, and eventually causing the vxconfigd to go 
into disabled state:
Kernel and on-disk configurations don't match; transactions are disabled.

DESCRIPTION:
This is becasue one of the cases of EFI remote disk is not properly handled
in disk recovery part when vxconfigd is enabled.

RESOLUTION:
Code changes have been done to set the EFI flag on darec in recovery code

* 3933910 (Tracking ID: 3910228)

SYMPTOM:
Registration of GAB(Global Atomic Broadcast) port u fails on slave nodes after 
multiple new devices are added to the system..

DESCRIPTION:
Vxconfigd sends command to GAB for port u registration and waits for a respnse 
from GAB. During this timeframe if the vxconfigd is interrupted by any other 
module apart from GAB then it will not be able to receive the signal from GAB 
of successful registration. Since the signal is not received, vxconfigd 
believes the registration did not succeed and treats it as a failure.

RESOLUTION:
Mask the signals which vxconfigd can receive before waiting for the signal from 
GAB for registration of gab u port.

* 3937541 (Tracking ID: 3911930)

SYMPTOM:
Valid PGR operations sometimes fail on a dmpnode.

DESCRIPTION:
As part of the PGR operations, if the inquiry command finds that PGR is not
supported on the dmpnode node, a flag PGR_FLAG_NOTSUPPORTED is set on the
dmpnode.
Further PGR operations check this flag and issue PGR commands only if this flag
is
NOT set.
This flag remains set even if the hardware is changed so as to support PGR.

RESOLUTION:
A new command (namely enablepr) is provided in the vxdmppr utility to clear this
flag on the specified dmpnode.

* 3937545 (Tracking ID: 3932246)

SYMPTOM:
vxrelayout operation fails to complete.

DESCRIPTION:
IF we lose connectivity to underlying storage  while volume relayout is in 
progress, some intermediate volumes for the relayout could be in disabled or 
undesirable state either due to I/O error. Once the storage connectivity is 
back 
such intermediate volumes should be recovered by vxrecover  utility and resume 
the vxrelayout operation automatically. But due to bug in vxrecover utility 
the 
volumes remained in disable state due to which the vxrelayout operation didn't 
complete.

RESOLUTION:
Changes are done in  vxrecover utility to enable the intermediate volumes.

* 3937549 (Tracking ID: 3934910)

SYMPTOM:
IO errors on data volume or file system happen after some cycles of snapshot 
creation/removal with dg reimport.

DESCRIPTION:
With the snapshot of the data volume removal and the dg reimport, the DRL map 
keep active rather than to be inactivated. With the new snapshot created, the 
DRL would be re-enabled and new DRL map allocated with the first write to the 
data volume. The original active DRL map would not be used and leaked. After 
some such cycles, the extent of the DCO volume would be exhausted due to the 
active but not be used DRL maps, then no more DRL map could be allocated and 
the IOs would be failed or unable to be issued on the data volume.

RESOLUTION:
Code changes are done to inactivate the DRL map if the DRL is disabled during 
the volume start, then it could be reused later safely.

* 3937550 (Tracking ID: 3935232)

SYMPTOM:
Replication and IO hang may happen on new master node during master 
takeover.

DESCRIPTION:
During master switch is in progress if log owner change kicks in, flag 
VOLSIO_FLAG_RVC_ACTIVE will be set by log owner change SIO. 
RVG(Replicated Volume Group) recovery initiated by master switch  will clear 
flag VOLSIO_FLAG_RVC_ACTIVE after RVG recovery done. When log owner 
change done,  as flag VOLSIO_FLAG_RVC_ACTIVE has been cleared, resetting 
flag VOLOBJ_TFLAG_VVR_QUIESCE is skipped. The present of flag 
VOLOBJ_TFLAG_VVR_QUIESCE will make replication and application IO on RVG 
always be in pending state.

RESOLUTION:
Code changes have been done to make log owner change wait until master 
switch completed.

* 3937808 (Tracking ID: 3931936)

SYMPTOM:
In FSS(Flexible Storage Sharing) environment, after restarting slave node VxVM 
command on master node hang result in failed disks on slave node could not 
rejoin disk group.

DESCRIPTION:
While lost remote disks on slave node comes back, online these disk and add 
them to disk group operations are performed on master node. Disk online 
includes operations from both master and slave node. On slave node these 
disks 
should be offlined then reonlined, but due to code defect reonline disks are 
missed result in these disks are kept in reonlining state. The following add disk 
to 
disk group operation needs to issue private region IOs on the disk. These IOs 
are 
shipped to slave node to complete. As the disks are in reonline state, busy error 
gets returned and remote IOs keep retrying, hence VxVM command hang on 
master node.

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

* 3937811 (Tracking ID: 3935974)

SYMPTOM:
While communicating with client process, vxrsyncd daemon terminates and after 
sometime it gets started or may require a reboot to start.

DESCRIPTION:
When the client process shuts down abruptly and vxrsyncd daemon attempt to write 
on the client socket, SIGPIPE signal is generated. The default action for this 
signal is to terminate the process. Hence vxrsyncd gets terminated.

RESOLUTION:
This SIGPIPE signal should be handled in order to prevent the termination of 
vxrsyncd.

* 3938392 (Tracking ID: 3909630)

SYMPTOM:
OS panic happens as the following stack after some DMP devices migrated to
TPD(Third 
Party Driver) devices.

void vxdmp:dmp_register_stats+0x120()
int vxdmp:gendmpstrategy+0x244()
vxdmp:dmp_restart_io()
int vxdmp:dmp_process_deferbp+0xec()
void vxdmp:dmp_process_deferq+0x68()
void vxdmp:dmp_daemons_loop+0x160()

DESCRIPTION:
When updating CPU index for new path migrated to TPD, IOs on this path are 
unquiesced before increasing last CPU's stats table, as a result , while
registering 
IO stat for restarted IO on this path, if need to access last CPUs stats
table, 
invalid memory access and panic may happen.

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

Patch ID: VRTSdbac-7.3.1.100

* 3969208 (Tracking ID: 3969207)

SYMPTOM:
Veritas Infoscale does not support AIX 7.1 TL5 and AIX 7.2 TL3.

DESCRIPTION:
Veritas Infoscale does not support AIX 7.1 TL5 and AIX 7.2 TL3.

RESOLUTION:
Veritas Infoscale support for AIX 7.1 TL5 and AIX 7.2 TL3 is now introduced.

Patch ID: VRTSglm-7.3.1.1200

* 3944902 (Tracking ID: 3944901)

SYMPTOM:
"hastop -all" initiate un-mounting operation on all the mount point resource. This operation might hang in infoscale version of 7.3.1

DESCRIPTION:
Before starting the recovery, glm scope flag is cleared in order to force lock consumers to wait, since local recovery will soon follow. Recovery initiated by RESTART can leave in between if some other recovery is initiated. Due to collision of SCOPE_LEAVE and RESTART GLM API's, there can be a case where no one did the recovery and all other operations hung waiting for recovery to complete.

RESOLUTION:
Code changes have been done to ensure that during such races, anyone of them must complete the local recovery.

* 3952305 (Tracking ID: 3939996)

SYMPTOM:
Multiple threads sharing a single file and at least one thread modifying file. 
Cluster must have a large no of CPU's calling CFS doing operations of files
being 
shared by multiple threads. Most probable in AIX with large no of CPU's.

DESCRIPTION:
GLM has a global per port lock called as gp_gen_lock, which protects recovery 
related counters.
Although gp_gen_lock is taken for a very short time but on LOCK request side is 
taken more 
frequent and multi threaded, where it's causing contention on high end servers.

RESOLUTION:
Code changes are being made to avoid bottleneck/contention.

* 3952307 (Tracking ID: 3940838)

SYMPTOM:
Print the master nodeid information of the stuck lock in the output of glmdump.

DESCRIPTION:
In case of CFS, if any GLM lock gets stuck, we use glmdump utility to find out the
possible stuck lock but the current glmdump utility does not print node id of the
master lock.

RESOLUTION:
Code changes have been done to print the master lock node id.

* 3959327 (Tracking ID: 3959325)

SYMPTOM:
Machine panics due to NULL pointer dereference

DESCRIPTION:
In case of cascade node reboot NULL pointer dereference was seen in nmsg process code path. There was a race between recovery and message processing. In message processing scope is searched. After getting the scope no hold is taken on scope. In parallel recovery is in progress and it releases the scope. After the scope is been released any access to scope will cause memory corruption. In this case we are hitting null pointer dereference while accessing one field of scope.

RESOLUTION:
Done code changes to ensure that there is hold on scope so that scope free in recovery is delayed.

* 3967903 (Tracking ID: 3932845)

SYMPTOM:
Temporary files are being created in /tmp

DESCRIPTION:
The GLM component is creating files in /tmp

RESOLUTION:
Added code to redirect temporary files in common location.

Patch ID: VRTSodm-7.3.1.2200

* 3967901 (Tracking ID: 3932804)

SYMPTOM:
Temporary files are being created in /tmp

DESCRIPTION:
The odm component is creating files in /tmp

RESOLUTION:
Added code to redirect temporary files in common location.

Patch ID: VRTSvxfs-7.3.1.2200

* 3929952 (Tracking ID: 3929854)

SYMPTOM:
Event notification was not supported on CFS mount point so getting following 
errors in log file.
-bash-4.1# /usr/jdk/jdk1.8.0_121/bin/java test1
myWatcher: sun.nio.fs.SolarisWatchService@70dea4e filesystem provider is : sun.nio.fs.SolarisFileSystemProvider@5c647e05
java.nio.file.FileSystemException: /mnt1: Operation not supported
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
        at sun.nio.fs.UnixException.asIOException(UnixException.java:111)
        at sun.nio.fs.SolarisWatchService$Poller.implRegister(SolarisWatchService.java:311)
        at sun.nio.fs.AbstractPoller.processRequests(AbstractPoller.java:260)
        at sun.nio.fs.SolarisWatchService$Poller.processEvent(SolarisWatchService.java:425)
        at sun.nio.fs.SolarisWatchService$Poller.run(SolarisWatchService.java:397)
        at java.lang.Thread.run(Thread.java:745)

DESCRIPTION:
WebLogic watchservice was failing to register with CFS mount point directory.
which is  resulting into "/mnt1: Operation not supported" on cfs mount point.

RESOLUTION:
Added new module parameter "vx_cfsevent_notify" to enable event notification
support on CFS.
By default vx_cfsevent_notify is disable.

This will work only in Active-Passive scenario:

-The Primary node(Active) which has set this tunable will receive notifications 
for the respective events happened on cfs mount point directory.

-Secondary node (Passive) will not receive any notifications.

* 3943715 (Tracking ID: 3944884)

SYMPTOM:
ZFOD extents are being pushed on the clones.

DESCRIPTION:
In case of logged writes on ZFOD extents on primary, ZFOD extents are 
are pushed on clones which is not expected which results into internal write test 
failures.

RESOLUTION:
Code has been modified not to push ZFOD extents on clones.

* 3947560 (Tracking ID: 3947421)

SYMPTOM:
DLV upgrade operation fails while upgrading Filesystem from DLV 9 to DLV 10 with
following error message:
ERROR: V-3-22567: cannot upgrade /dev/vx/rdsk/metadg/metavol - Invalid argument

DESCRIPTION:
If the filesystem has been created with DLV 5 or lesser and later the successful
upgrade opration has been done from 5 to 6, 6 to 7, 7 to 8, 8 to 9. The newly
written code tries to find the "mkfs" logging in the history log. There was no
concept of logging the mkfs operation in the history log for DLV 5 or lesser so
Upgrade operation fails while upgrading from DLV 9 to 10

RESOLUTION:
Code changes have been done to complete upgrade operation even in case mkfs
logging is not found.

* 3947561 (Tracking ID: 3947433)

SYMPTOM:
While adding a volume (part of vset) in already mounted filesystem, fsvoladm
displays following error:
UX:vxfs fsvoladm: ERROR: V-3-28487: Could not find the volume <volume name> in vset

DESCRIPTION:
The code to find the volume in the vset requires the file descriptor of character
special device but in the concerned code path, the file descriptor that is being
passed is of block device.

RESOLUTION:
Code changes have been done to pass the file descriptor of character special device.

* 3947651 (Tracking ID: 3947648)

SYMPTOM:
Due to the wrong auto tuning of vxfs_ninode/inode cache, there could be hang 
observed due to lot of memory pressure.

DESCRIPTION:
If kernel heap memory is very large(particularly observed from SOLARIS T7 
servers), there can be overflow due to smaller size data type.

RESOLUTION:
Changed the code to handle overflow.

* 3952304 (Tracking ID: 3925281)

SYMPTOM:
Hexdump the incore inode data and piggyback data when inode revalidation fails.

DESCRIPTION:
While assuming the inode ownership, if inode revalidation fails with piggyback 
data, then we doesn't hexdump the piggyback and incore inode data. This will loose the 
current 
state of inode. Added inode revalidation failure message and hexdump the incore inode data 
and 
piggyback data.

RESOLUTION:
Code is modified to print hexdump of incore inode and piggyback data when 
revalidation of inode fails.

* 3952309 (Tracking ID: 3941942)

SYMPTOM:
If fiostats_enabled filesystem is created, and if odmwrites are in progress, 
forcefully unmounting the filesystem can panic the system.

crash_kexec
oops_end
no_context
__bad_area_nosemaphore
bad_area_nosemaphore
__do_page_fault
do_page_fault
vx_fiostats_free
fdd_chain_inactive_common
fdd_chain_inactive
fdd_odm_close
odm_vx_close
odm_fcb_free
odm_fcb_rel
odm_ident_close
odm_exit
odm_tsk_daemon_deathlist
odm_tsk_daemon
odm_kthread_init
kernel_thread

DESCRIPTION:
When we are freeing fiostats assigned to an inode, when we unmount the 
filesystem forcefully, we have to validate fs field. Otherwise we may end up 
in a situation where we dereference NULL pointer for checks in this codepath, 
which panics.

RESOLUTION:
Code is modified to add checks to validate fs in such scenarios of force 
unmount.

* 3958475 (Tracking ID: 3958461)

SYMPTOM:
mkfs_vxfs(1m) and vxupgrade_vxfs(1m) man pages contain the outdated information of supported DLVs.

DESCRIPTION:
mkfs_vxfs(1m) and vxupgrade_vxfs(1m) man page contain the older DLVs information.

RESOLUTION:
Code changes have been done to reflect the updated DLV support in man pages of mkfs_vxfs(1m) and vxupgrade_vxfs(1m).

* 3958776 (Tracking ID: 3958759)

SYMPTOM:
fsadm "-i" option can't be used vxfs7.3.1 for Solaris env..

DESCRIPTION:
The code is expecting some argument value for the option "i" in Solaris.

RESOLUTION:
Code changes done accordingly.

* 3960468 (Tracking ID: 3957092)

SYMPTOM:
System panic with spin_lock_irqsave thru splunkd in rddirahead path.

DESCRIPTION:
As per current state of, it seems to be spinlock getting re-initialized somehow in rddirahead path which is causing this deadlock.

RESOLUTION:
Code changes done accordingly to avoid this situation.

* 3967894 (Tracking ID: 3932163)

SYMPTOM:
Temporary files are being created in /tmp

DESCRIPTION:
The VxFS component is creating files in /tmp

RESOLUTION:
Added code to redirect temporary files in common location.

* 3968821 (Tracking ID: 3968885)

SYMPTOM:
The fsadm utility might hit userspace core

DESCRIPTION:
The fsadm utility might hit userspace core with below stack trace

pth_signal.pthread_kill
pth_signal._p_raise
raise.raise
abort()
print.assert
build_list
reorg_inode
fset_ilist_process
do_reorg
ext_reorg
do_fsadm
main

RESOLUTION:
Added code to fix this issue

* 3933810 (Tracking ID: 3830300)

SYMPTOM:
Heavy cpu usage while oracle archive process are running on a clustered
fs.

DESCRIPTION:
The cause of the poor read performance in this case was due to fragmentation,
fragmentation mainly happens when there are multiple archivers running on the
same node. The allocation pattern of the oracle archiver processes is 

1. write header with O_SYNC
2. ftruncate-up the file to its final size ( a few GBs typically)
3. do lio_listio with 1MB iocbs

The problem occurs because all the allocations in this manner go through
internal allocations i.e. allocations below file size instead of allocations
past the file size. Internal allocations are done at max 8 Pages at once. So if
there are multiple processes doing this, they all get these 8 Pages alternately
and the fs becomes very fragmented.

RESOLUTION:
Added a tunable, which will allocate zfod extents when ftruncate
tries to increase the size of the file, instead of creating a hole. This will
eliminate the allocations internal to file size thus the fragmentation. Fixed
the earlier implementation of the same fix, which ran into
locking issues. Also fixed the performance issue while writing from secondary node.

* 3933815 (Tracking ID: 3902812)

SYMPTOM:
Mount command for vxfs file system fails with the following error on a AIX 
system having huge physical memory:

UX:vxfs mount: ERROR: V-3-20: Not enough space
UX:vxfs mount: ERROR: V-3-21256: cannot mount /dev/vx/dsk/datadg/vol1

DESCRIPTION:
For big memory systems the number of VMM buffers auto-tuned will be huge, 
which in turn will increase number of VMM buffers-per-PDT. This can lead to 
mount failures as it cant allocate huge chunk of memory from pinned heap. 
To alleviate this problem, number of PDTs in case of huge memory system 
needs to be increased to spread out the  VMM buffers per PDT.

RESOLUTION:
Tune up the number of PDTs based on amount of physical memory for big memory 
systems.

* 3933819 (Tracking ID: 3879310)

SYMPTOM:
The file system may get corrupted after the file system freeze during 
vxupgrade. The full fsck gives the following errors:

UX:vxfs fsck: ERROR: V-3-20451: No valid device inodes found
UX:vxfs fsck: ERROR: V-3-20694: cannot initialize aggregate

DESCRIPTION:
The vxupgrade requires the file system to be frozen during its functional 
operation. It may happen that the corruption can be detected while the freeze 
is in progress and the full fsck flag can be set on the file system. However, 
this doesn't stop the vxupgrade from proceeding.
At later stage of vxupgrade, after structures related to the new disk layout 
are updated on the disk, vxfs frees up and zeroes out some of the old metadata 
inodes. If any error occurs after this point (because of full fsck being set), 
the file system needs to go back completely to the previous version at the tile 
of full fsck. Since the metadata corresponding to the previous version is 
already cleared, the full fsck cannot proceed and gives the error.

RESOLUTION:
The code is modified to check for the full fsck flag after freezing the file 
system during vxupgrade. Also, disable the file system if an error occurs after 
writing new metadata on the disk. This will force the newly written metadata to 
be loaded in memory on the next mount.

* 3933820 (Tracking ID: 3894712)

SYMPTOM:
ACL permissions are not inherited correctly on cluster file system.

DESCRIPTION:
The ACL counts stored on a directory inode gets reset every 
time directory inodes 
ownership is switched between the nodes. When ownership on directory inode 
comes back to the node, 
which  previously abdicated it, ACL permissions were not getting inherited 
correctly for the newly 
created files.

RESOLUTION:
Modified the source such that the ACLs are inherited correctly.

* 3933824 (Tracking ID: 3908785)

SYMPTOM:
System panic observed because of null page address in writeback structure in case of 
kswapd 
process.

DESCRIPTION:
Secfs2/Encryptfs layers had used write VOP as a hook when Kswapd is triggered to 
free page. 
Ideally kswapd should call writepage() routine where writeback structure are correctly filled.  When 
write VOP is 
called because of hook in secfs2/encrypts, writeback structures are cleared, resulting in null page 
address.

RESOLUTION:
Code changes has been done to call VxFS kswapd routine only if valid page address is 
present.

* 3933828 (Tracking ID: 3921152)

SYMPTOM:
Performance drop. Core dump shows threads doing vx_dalloc_flush().

DESCRIPTION:
An implicit typecast error in vx_dalloc_flush() can cause this performance issue.

RESOLUTION:
The code is modified to do an explicit typecast.

* 3933843 (Tracking ID: 3926972)

SYMPTOM:
Once a node reboots or goes out of the cluster, the whole cluster can hang.

DESCRIPTION:
This is a three way deadlock, in which a glock grant could block the recovery while trying to 
cache the grant against an inode. But when it tries for ilock, if the lock is held by hlock revoke 
and 
waiting to get a glm lock, in our case cbuf lock, then it won't be able to get that because a 
recovery is in progress. The recovery can't proceed because glock grant thread blocked it.

Hence the whole cluster hangs.

RESOLUTION:
The fix is to avoid taking ilock in GLM context, if it's not available.

* 3934841 (Tracking ID: 3930267)

SYMPTOM:
Deadlock between fsq flush threads and writer threads.

DESCRIPTION:
In linux, under certain circumstances i.e. to account dirty pages, writer threads 
takes lock on inode 
and start flushing dirty pages which will need page lock. In this case, if fsq flush threads start 
flushing transaction 
on the same inode then it will need the inode lock which was held by writer thread. The page 
lock was taken by 
another writer thread which is waiting for transaction space which can be only freed by fsq 
flush thread. This 
leads to deadlock between these 3 threads.

RESOLUTION:
Code is modified to add a new flag which will skip dirty page accounting.

* 3935903 (Tracking ID: 3933763)

SYMPTOM:
Oracle was hung, plsql session and ssh both were hanging.

DESCRIPTION:
There is a case in reuse code path where we are hitting dead loop while processing
inactivation thread.

RESOLUTION:
To fix this loop, we are going to try only once to finish inactivation of inodes
before we allocate a new inode for structural/attribute inode processing.

* 3936286 (Tracking ID: 3936285)

SYMPTOM:
fscdsconv command may fail the conversion for disk layout version 12 and
above.After exporting file system for use on the specified target, it fails to
mount on that specified target with below error:

# /opt/VRTS/bin/mount <vol> <mount-point>
UX:vxfs mount: ERROR: V-3-20012: not a valid vxfs file system
UX:vxfs mount: ERROR: V-3-24996: Unable to get disk layout version

when importing file system on target for use on the same system, it asks for
'fullfsck' during mount. After 'fullfsck', file system mounted successfully. But
fsck gives below
meesages:

# /opt/VRTS/bin/fsck -y -o full /dev/vx/rdsk/mydg/myvol
log replay in progress
intent log does not contain valid log entries
pass0 - checking structural files
fileset 1 primary-ilist inode 34 (SuperBlock)
                failed validation clear? (ynq)y
pass1 - checking inode sanity and blocks
rebuild structural files? (ynq)y
pass0 - checking structural files
pass1 - checking inode sanity and blocks
pass2 - checking directory linkage
pass3 - checking reference counts
pass4 - checking resource maps
corrupted CUT entries, clear? (ynq)y
au 0 emap incorrect - fix? (ynq)y
OK to clear log? (ynq)y
flush fileset headers? (ynq)y
set state to CLEAN? (ynq)y

DESCRIPTION:
While checking for filesystem version in fscdsconv, the check for DLV 12 and above
was missing and that triggered this issue.

RESOLUTION:
Code changes have been done to handle filesystem version 12 and above for
fscdsconv command.

* 3937536 (Tracking ID: 3940516)

SYMPTOM:
The file resize thread loops infinitely if tried to resize file to a size 
greater than 4TB

DESCRIPTION:
Because of vx_u32_t typecast in vx_odm_resize function, resize threads gets stuck
inside an infinite loop.

RESOLUTION:
Removed vx_u32_t typcast in vx_odm_resize() to handle such scenarios.

* 3939812 (Tracking ID: 3939224)

SYMPTOM:
Removing file on VxFS hangs on latest release of AIX TL.

DESCRIPTION:
On latest version of aix TL (7.1 TL5sp1 and 7.2 latest TL), IBM has done some 
major changes in unlinking code path where they expect vnode list should be terminated with 
NULL. But VxFS initialize vnode's next to itest which was causing dead loop when removing file.

RESOLUTION:
Code is modified such that vnode's next is terminated with NULL.

* 3942458 (Tracking ID: 3912203)

SYMPTOM:
cafs module is not getting loaded automatically on VRTSvxfs 
patch installation

DESCRIPTION:
The changes required to load the "cafs" driver automatically after
 installation of a patch over VxFS 7.2 release is missing in postinstall 
script in AIX. As a result, "cafs" driver is not getting loaded automatically 
while installing patch over 7.2.0 release. we need to manually run
 vxkextadm to load it.

RESOLUTION:
Code changes have been done to install the cafs module 
automatically.

* 3942697 (Tracking ID: 3940846)

SYMPTOM:
While upgrading the filesystem from DLV 9 to DLV 10, vxupgrade fails
with following error :

# vxupgrade -n 10 <mount point>
UX:vxfs vxupgrade: ERROR: V-3-22567: cannot upgrade <volname> - Not owner

DESCRIPTION:
while upgrading from DLV 9 to DLV 10 or upwards, upgrade code path serches for
mkfs version in histlog. This changes has been introduced to perform some
specific operations while upgrading the filesystem. If mkfs has been done for
the filesystem with version 6 and then the upgrade has been performed then only
this issue pops up as the histlog conversion from DLV 6 to DLV 7 does not
propagate the mkfs version field. This issue will occur only on Infoscale 7.3.1
onwards.

RESOLUTION:
Code changes have been done to allow DLV upgrade even in cases where mkfs
version is not present in the histlog.



INSTALLING THE PATCH
--------------------
Run the Installer script to automatically install the patch:
-----------------------------------------------------------
Please be noted that the installation of this P-Patch will cause downtime.

To install the patch perform the following steps on at least one node in the cluster:
1. Copy the patch infoscale-aix72-Patch-7.3.1.100.tar.gz to /tmp
2. Untar infoscale-aix72-Patch-7.3.1.100.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/infoscale-aix72-Patch-7.3.1.100.tar.gz
    # tar xf /tmp/infoscale-aix72-Patch-7.3.1.100.tar
3. Install the hotfix(Please be noted that the installation of this P-Patch will cause downtime.)
    # pwd /tmp/hf
    # ./installVRTSinfoscale731P100 [<host1> <host2>...]

You can also install this patch together with 7.3.1 maintenance release using Install Bundles
1. Download this patch and extract it to a directory
2. Change to the Veritas InfoScale 7.3.1 directory and invoke the installmr script
   with -patch_path option where -patch_path should point to the patch directory
    # ./installmr -patch_path [<path to this patch>] [<host1> <host2>...]

Install the patch manually:
--------------------------
#Manual Installation Not Supported


REMOVING THE PATCH
------------------
Run the Uninstaller script to automatically remove the patch:
------------------------------------------------------------
To uninstall the patch perform the following step on at least one node in the cluster:
    # /opt/VRTS/install/uninstallVRTSinfoscale731P100 [<host1> <host2>...]

Remove the patch manually:
-------------------------
#Manual Uninstallation Not Supported


KNOWN ISSUES
------------
* Tracking ID: 3969191

SYMPTOM: After rejecting the patch, reject script unload the below 2 modules. When it returns to the GAed package modules are in unloaded state.
When we uninstall GAed package, Uninstallation script check status of module, where it find unloaded and through error code a 23, which should be ideally 0.

1.  /usr/lib/methods/vcsmmext
2.  /usr/lib/methods/lmxext

Error message :

/usr/lib/methods/vcsmmext -stop failed.
/usr/lib/methods/lmxext -stop failed.

WORKAROUND: This issue will be fixed as a part of future mainline release.



SPECIAL INSTRUCTIONS
--------------------
NONE


OTHERS
------
NONE



Read and accept Terms of Service