How to cause NetBackup to use and fill older media before selecting new media just added

Article:TECH35407  |  Created: 2004-01-12  |  Updated: 2013-10-24  |  Article URL http://www.symantec.com/docs/TECH35407
Article Type
Technical Solution


Environment

Issue



How to cause NetBackup to use and fill older media before selecting new media just added


Solution



VERITAS NetBackup (tm) tries to load balance tape usage, favoring media with the fewest mounts assigned first. When a new tape is added with zero mounts assigned, that tape would be a prime candidate for use first. In some installations with smaller tape libraries, it may be desirous to first fill the older media prior to writing to the new unwritten tapes, the end result being, those older media can be filled and replaced, maximizing tape usage.

In the Media section of the GUI, sort the contents by selecting the Robots tab to display those media currently in the library first. Review the Mounts column for each media to find the tapes with the highest number of mounts.
Add the new media to the library, then perform a robotic inventory.
Then for each of the new tapes just added, run the following command from the master server:

/usr/openv/volmgr/bin/vmchange -n <number> -m <mediaID>

where <number> = a mount count higher than any currently within the tape library.

 


Legacy ID



272911


Article URL http://www.symantec.com/docs/TECH35407


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