IT32128: CLIENT MAY CRASH DURING VIRTUAL MACHINE BACKUPS WITH DATA PROTECTION FOR VMWARE

APAR status

• Closed as program error.

Error description

• When the option VMLIMITPERDatastore is set to a value other that
  the default of zero, backups of a virtual machine (VM) with an
  empty disk list using IBM Spectrum Protect for Virtual
  Environments - Data Protection for VMware 8.1.9.0 may not
  complete as shown in the following example of messages from a
  schedule log file from a Windows system:
  
  <timestamp> Removing snapshot for virtual machine 'test-03'
  <timestamp> Removing snapshot for virtual machine 'test-02'
  <timestamp> Removing snapshot for virtual machine 'test-01'
  <timestamp> Volume -->   2,752,512 [DatastoreName]
   test-04/test-04.vmdk (Hard Disk x) [Sent]
  <timestamp + N minutes> Scheduler has been started by Dsmcad.
  
  On Microsoft Windows an APPCRASH event for dsmcsvc.exe will be
  logged in the application event log for that time.
  
  A dsmcrash.dmp dump file may be created during the time of the
  crash and may contain a call stack like the following for an
  incident on a Windows system:
  
  dsmcsvc.exe, vmDispatchCallback()+823 bytes
  dsmcsvc.exe, DccBackupController::bacDispatcher()+134 bytes
  dsmcsvc.exe, DccBaPerformanceMonitor::Monitor()+403 bytes
  dsmcsvc.exe, startThread()+279 bytes
  ucrtbase.DLL, o__realloc_base()+96 bytes
  KERNEL32.DLL, BaseThreadInitThunk()+34 bytes
  ntdll.dll, RtlUserThreadStart()+52 bytes
  
  =======================
  Affected versions:
  IBM Spectrum Protect for Virtual Environments
  - Data Protection for VMware 8.1.9.0 and 7.1.8.7
  on all supported Windows and Linux platforms.
  
  Note 1: The Backup-Archive Client is a prerequisite to using the
  Data Protection for VMware version 7.1. In Data Protection for
  VMware environments, the Backup-Archive Client is also known
  as the data mover.
  
  If you are using Backup-Archive Client 7.1.8.7 and 8.1.9, refer
  to
  APAR  IT32128
  
  If you are using Data Protection for VMware 8.1,
  refer to APAR IT31224
  
  =======================
  Initial Impact: Medium
  
  =======================
  Additional Keywords:
  TS003071872 tsm tdp ve vmware linux windows
  | MDVREGR 8.1.9.0-TIV_5725TVEVM |
  

Local fix

• Comment out the option VMLIMITPERDatastore or set it to zero.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect for Virtual Environments Data           *
  * Protection for VMware version 8.1.9 and 7.1.8.7 running on   *
  * all Microsoft Windows x64 and Linux x86 platforms.           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * see ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * This issue is projected to be fixed in the Backup-Archive    *
  * client version 7.1.8.8 on Windows x64 platforms and Linux    *
  * x86 platforms                                                *
  *                                                              *
  * Note 1: The Backup-Archive Client is a prerequisite to using *
  * the Data Protection for VMware version 7.1.                  *
  * In Data Protection for VMware environments, the              *
  * Backup-Archive Client is also known as the data mover.       *
  *                                                              *
  * Note 2: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• VMs with empty disk list are now correctly processed.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IT31224

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels