IT14188: INCREMENTAL BACKUP OF A VM MAY FAIL AFTER ADDING RDM OR INDEPENDENT DISKS

IBM Spectrum Protectâ„¢ Client 7.1.6 Downloads and READMEs

APAR status

• Closed as program error.

Error description

• After adding RDM or independent disks to a virtual machine, a
  subsequent incremental backup of that VM may fail with errors
  similar to the following:
  
     ANS1773I The virtual machine 'CLIENT-VM' contains one or more
     independent disks and these disks are excluded from the VM
     backup.
     ANS4174E Full VM backup of VMware Virtual Machine 'CLIENT-VM'
     failed with RC=-1 mode=Incremental Forever - Incremental,
     target node name='CLIENT-VM-TARGET', data mover node
     name='CLIENT-VM-MOVER'
     ANS5283E The operation was unsuccessful.
  
  The incremental backup will only fail if the new disks are added
  after a full backup of the VM has already been performed.  If
  the independent and/or RDM disks are added prior to the initial
  full backup, then the backup will complete successfully.
  
  | MDVREGR 7.1.4.0-TIV-5698ISMCL |
  
  IBM Spectrum Protect Versions Affected:
  Linux and Windows clients 7.1.4.0 and higher
  
  Initial Impact:
  Medium
  

Local fix

• Performing a full backup of the affected VM will resolve the
  error condition and allow for subsequent incremental backups to
  complete successfully.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Tivoli Storage Manager for Virtual Environments component    *
  * Data Protection for VMware version 7.1.4 running on all      *
  * Microsoft Windows and Linux x86 platforms                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * VM incremental backup failures occur when excluded           *
  * independent or RDM disks are added to a virtual machine      *
  * after a full backup of the VM has already been performed.    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * This issue is projected to be fixed in the Tivoli Storage    *
  * Manager Client on Windows 7.1.6                              *
  * Note 1: The Tivoli Storage Manager (TSM) Client is a         *
  * prerequisite to using the Data Protection for VMware. In     *
  * Data Protection for VMware environments, the TSM Client is   *
  * also known as the data mover.                                *
  * Note 2: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• During incremental VM backups, we make calls to get certain
  information about each of the VM's disks.  The calls are failing
  when made for RDM or independent disks that were added after the
  last full backup.  The solution was to use a return code that
  indicates success after successfully using alternate methods to
  get this information.
  

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

• dsm      dsmc
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R71L PSY

     UP

• R71W PSY

     UP