Hello Symaj,
From the NetBackup 7.1 Best Practice - Using SLPs and AIR.pdf
Reduce backlog by delaying or canceling the duplication of the older images.
SLPs duplicate the oldest images first. Until the backlog is cleared up, your new backups will not be
duplicated. The easiest way to reduce the backlog is to use nbstlutil to delay or cancel processing of
old images.
Delaying duplications is a good way of clearing a backlog caused by a temporary lack of resources (for example if a tape library is down), stopping work being queued while new resources are being installed and allowing more urgent duplications to be processed ahead of older, less urgent ones. It does not solve the problem of a continuously growing backlog caused by having more duplications than the available resources can manage.
nbstlutil inactive – using different qualifiers this command can be used to delay pending
duplications by suspending processing for a particular SLP (-lifcycle), storage destination (–
destination) or image (-backupid)
The command nbstlutil pendimplist can be run on the target master server to view images that
have been successfully duplicated but have not yet been are imported into the target domain (for example
because the import storage unit is marked ̳down‘ for some reason).
Use the following entries in the LIFECYCLE_PARAMETERS file to tune the size and frequency of
duplication jobs. Changes to these parameters will take effect immediately without restarting any
NetBackup services:
Best regards,
Cruisen