TSM is not tape-oriented: it is stored-object-oriented.
The copy storage pool contains an image of your primary pool(s)
according to the policies for the objects stored in the primary pool.
Your DR practices need to keep a copy of all data objects offsite,
not just a fixed number of tapes.  You're not preserving media -
you're preserving data.

  Richard Sims

On Apr 4, 2006, at 12:34 AM, Paul Dudley wrote:

We have TSM version 5.2

I have changed the standard policy so that we now keep the 10 latest
versions of each file rather than 7.

I have also changed our del volhist to tod=today-10 where it was
previously 7.

I have been told that previously we had to keep the 7 latest copy
tapes
and db tapes offsite for DRP to ensure that we could recover complete
servers. With the changes that I have made does this mean that we have
to now keep the 10 latest tapes offsite for complete DRP?