IT40725: IBM SPECTRUM PROTECT FOR VIRTUAL ENVIRONMENTS IS UNABLE TO BACKUP MULTIPLE VMDK DISKS PARALLELLY.

APAR status

• Closed as program error.

Error description

• Per the original IBM Spectrum Protect for Virtual Environments
  8.1 performance improvement design, the data mover should be
  able to process multiple VMs in parallel, multiple disks for the
  same VM in parallel, and use multiple sessions per VMDK. It also
  supports multi-session backup of a single VMDK.
  
  
  The internal algorithms figure out how many VMs are backed up
  at the same time, how many disks are backed up at the same time,
  and how many sessions are used to back up a single disk.
  
  But when performing concurrent backup using multiple VMDK disks
  in a single VM, only one disk is backed up at a time,even the
  controlling options VMMAXBACKUPSESSIONS, VMMAXPARALLEL,
  VMHOSTLIMIT, and VMDATASTORELIMIT are set to desired value.
  Example :
  Performance Options
  VMMAXParallel 25
  VMLIMITPERHost 3
  VMLIMITPERDatastore 25
  VMMAXBACKUPSession 25
  
  
  | MDVREGR 8.1.13 -TIV_5725TVEVM |
  
  IBM Spectrum Protect Versions Affected:
  IBM Spectrum Protect for Virtual Environments component Data
  Protection for VMware versions 8.1.13 and on Windows and Linux
  
  Initial Impact:Medium
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Data Protection for VMware versions 8.1.13, 8.1.14, and      *
  * 8.1.15 running on Linux x86 and Windows x64 platforms        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply the fixing level when available. This problem is       *
  * projected to be fixed in level 8.1.15.2 and 8.1.17. Note     *
  * that until the fixing level is actually available, this      *
  * information is subject to change at the discretion of IBM.   *
  ****************************************************************
  

Problem conclusion

• Multiple session can be assigned to disks per VM. Parallel
  activity for VMDDKs is now working correctly.
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  TSM FOR VE DP V

• Fixed component ID

  5725TVEVM

Applicable component levels