Hi Patrick

TSM doesn't work that way. It works with expiration of data, but not tapes. What you could try is one of three things:

1.) Use only selective backups. This is not a good way to do it, because you will be transporting a lot of data at every backup occasion.

2.) Deleting the volume you wish to use as scratch, with the flag discard=yes.

3.) Setting the backup copygroup policysettings so that no file will be kept for  more than 20 days(you need to discard the data before checkin in the tapes.

I guess what you are trying to do is to check in the tapes with status scratch. Before doing this, one of the above has to been done.

Best Regards

Daniel Sparrman

-----------------------------------
Daniel Sparrman
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Patrick Sheehan <psheehan AT GLOBE DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
2001-10-22 10:56 AST
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Subject: Policy and expiration

TSM'rs

        I have a tape library with one drive and 4 weeks of tapes. I rotate the tapes every week and thought I had set the policy correctly but whenever I use the oldest tapes I'm unable to checkin some of the tapes because there's still "good" data on them. What should I change in order for the tapes to expire every three weeks automatically?

TIA

Patrick
[IMAGE]