IT43031: Restored VM does not boot or is missing data after restore due to undetected data corruption during backup after new vmdk added

APAR status

• Closed as program error.

Error description

• After a new virtual disk (VMDK) is added to a VM, all subsequent
  incremental backups created by IBM Storage Protect for Virtual
  Environments: Data Protection for VMware 8.1.12.0 - 8.1.17.2 are
  corrupted. The first incremental backup that occurs after the
  disk was added shows that 0 (zero) bytes were sent for the new
  disk. Each subsequent incremental backup might show a different
  number of bytes backed up. However, all of the backups that are
  created after the disk is added are potentially corrupted.
  
  After restore of an affected backup version, the restored VM
  might not boot. If the VM can be booted, then data might be
  missing or corrupted.
  
  Important: The corrupted backup chain persists even after the
  fixed version is installed. A new full backup must be created
  to initiate a new incremental forever backup chain.
  
  Additional Keywords:
  ===================
  VMware, VM, VDDK, Restore, boot, TS009544958
  
  | MDVREGR 8.1.12.0-5725TVEVM |
  

Local fix

• Existing backups that are affected cannot be repaired. Create
  full backups For VMs that were backed up by version 8.1.12.0 -
  8.1.17.2 after a new disk was added. If you do not know which
  VM backups are affected, then create full backups for all VMs.
  Then resume incremental backups.
  
  Until the fixed version is installed, if you add a disk to a VM,
  then immediately create a full backup of the VM to prevent a
  recurrence of the problem.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect for Virtual Environments Data           *
  * Protection for VMware versions 8.1.12.x - 8.1.17.x running   *
  * on Windows x64 and Linux x86_64 platforms                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply the fixing level when available. This problem is       *
  * projected to be fixed in Data Protection for VMware level    *
  * 8.1.19.                                                      *
  * Note that until the fixing level is actually available, this *
  * information is subject to change at the discretion of IBM.   *
  ****************************************************************
  

Problem conclusion

• IFINCR VM backup succeeds, CBT is backed up and bytes are
  transferred to the server. Restore of the VM to the alternate
  location succeeds. All CBT data is restored successfully.
  

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