Do you have identical libraries in both locations?  And identical models and 
number of drives in them and same model/type of tape media?    How about the 
same number of tapes?   These are some basic factors that can account for the 
difference.

David B. Longo
Systems Administrator
Health First, Inc. I/T
3300 Fiske Blvd.
Rockledge, FL 32955-4305
PH      321.434.5536
Pager  321.634.8230
Fax:    321.434.5525
david.longo AT health-first DOT org



>>> scherchyk AT BANCORIO.COM DOT AR 12/27/00 11:21AM >>>
Hi all.

I have two TSM servers installed in AIX  4.3 boxes with Sun libraries in
different sites. In my HQ I take almost all the backups and I do a daily
copy pool to the remote site.

The local server (HQ) is TSM 3.7.2 and the remote one is 4.2.0.

The problem is that my local backup pool has 2.7 TB of data while the
remote pool has 3.7 TB. I expected a differential in the remote pool but
1TB (~30% more) seems to me too much for an overhead.

Questions:

How does TSM handle the expirations in a copy pool?

It is normal the overhead that I'm seeing?

If it is not, what can I do to reduce it?

Thanks to all.


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Sergio R. Cherchyk
Sergio R. Cherchyk
Arquitectura Tecnológica - Midrange
Banco Río de la Plata S.A. - Grupo BSCH
Mire 480, 2do piso - 1036 Cap. Fed.
Argentina
Tel. (054)-11-4341-1643
Fax. (054)-11-4341-1264
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