IT20992: "BACKUP VM" MAY FAIL THE DISK VERIFICATION CHECK ON 2TB+ VMDKS WITH ERRORS ANS9921E/ANS9919E

Download Information: Version 8.1.4 IBM Spectrum Protectâ„¢ for Virtual Environments

APAR status

• Closed as program error.

Error description

• Spectrum Protect Snapshot for VMware IFINCR "backup vm" may be
  completed with status failure (RC12) if client fails the
  virtual machine disk verification check on 2TB+ vmdks.
  
  The client's console shows the following errors:
  
  ANS9921E Virtual machine disk, <VMNAME> (Hard Disk 1),
  verification check failed (99662114816/99662168064). If the
  disk is on an NFS datastore and the disk size was recently
  changed, the verification failure is expected and a full backup
  is required.
  ANS9919E Failed to find the expected control files for <VMNAME>.
  
  The problem occurs if the "size on disk" value doesn't match a
  multiple of 64kb of the sector size declared in the vm control
  file.
  

Local fix

• The disk check can be disabled, but the check was put into place
  to detect unrecoverable backups described by Flash (Alert)
  number 1684022,
  TSM data mover backups of VMware guests might be unrecoverable:
  http://www.ibm.com/support/docview.wss?uid=swg21684022
  
  If, after reading the flash and determining its applicability,
  you decide to temporarily suspend the check so that IFINCR can
  be the VM can taken, then disable disk size verification by
  adding the following line in the dsm.opt file:
  
  testflag VMVERIFYIFDISK_LIGHT
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Data Protection for VMware version 8.1 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 Data Protection   *
  * for VMware Data Mover versions 8.1.4 on Windows x64 and      *
  * Linux x86 platforms.                                         *
  * Note 1: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• Verification now correctly works with 2TB+ disks.
  

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:

Modules/Macros

• dsmagent
  

Fix information

• Fixed component name

  TSM FOR VE DP V

• Fixed component ID

  5725TVEVM

Applicable component levels

• R81W PSY

     UP

• R81L PSY

     UP