Well I wrote a script that can be grabbed from my site, nbucentral.com, called 
tape_rotation.sh that will do something similar.  This was written for a 
customer who had a tape library too small for their environment so we had to 
determine which tapes were the "best" candidates for removal and to be replaced 
with SCRATCH media.

The basis of our selection criteria is this:

All FULL backups that were last read X days ago (TOO_OLD variable I think).

The thought was that the incrementals would fall off more quickly so we 
eliminated those as being candidates.

Otherwise, if you just want to just get the tapes last written x hoursago you 
can do this

Media Written
/usr/openv/netbackup/bin/admincmd/bpimagelist -A -media -d 04/17/01 15:53:00 -e 
04/18/01 23:59:00

or you can use -hoursago as well.

David

Quoting "Steven L. Sesar" <ssesar AT mitre DOT org>:

> I need to write a tool, which will allow operations to determine tapes 
> to pull out of a robot, in order to make room for scratch media.
> 
> Is anyone actually doing this and would you be willing to share some 
> suggestions with me?
> 
> Thnkas,
> 
> Steve
> 
> 
> 
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