True Image Restore with move detection should not be enabled in NetBackup policies where Accelerator has already been enabled.

  • Modified Date:
  • Article ID:000021349


Unexpected results, up to and including data loss, may occur when True Image Restore with move detection is enabled in a NetBackup policy which also has Accelerator enabled.

The initial symptom will be a backup that appears to complete successfully, but which will not be restorable.  Subsequent Accelerator-enabled backups from the same policy will attempt to reference the previous backup and fail reporting status codes 13 (file read failed) and/or 84 (media write error).


The formal resolution for this issue (Etrack 3458583) is included in the following release:

  • NetBackup 7.6 Maintenance Release 2 (

More information on this release can be found in the Related Article linked below.

Disable With move detection from policies where Accelerator is enabled (Figure 1):


Applies To

All versions of NetBackup through 7.6 GA ( are affected when Accelerator is enabled.

NetBackup Accelerator was introduced in NetBackup 7.5 GA.

Terms of use for this information are found in Legal Notices.



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