Hey Steve,

i'm also running a 3575 library with 3570C tapes.  I didn`t change the
destimated default capacity.
But i think, it`s not necessary.  If the 5 GB are reached, ADSM writes on
this tape until it is really full.
It may be up to 20 GB.
But do not activate Data-Compression on Client`s side !!!
The Library should do the compression. It`s better.

Sabine






Steve wrote:

I'm running a 3575  library with 3570C tapes.  In the devclass I've let the
estimated capacity default to 5GB.  This is causing copypool tapes to not
be
recycled as efficently as they might because the used percentage is
estimated
too high (I think - I'm relatively new at this).
Does anyone change the estimated capacity of 3570C tapes? If so what figure
do
you use?  I've got a couple of tapes of mostly empty oracle databases that
compress really well, nearly 15:1 compression, what do others find for
populated
oracle databases?
Steve.