Re: ADSM versus Arcserve and Backup Exec
1998-09-15 11:00:45
Subject: |
Re: ADSM versus Arcserve and Backup Exec |
From: |
Keenan Stratton <stratkee AT GTI DOT NET> |
Date: |
Tue, 15 Sep 1998 11:00:45 -0400 |
ADSM'ers,
I have performed multiple off-site DR tests using an IBM 3466 NetStor /3575
ATL. We have also come to the conclusion that recoveries are a concern. In
restoring an OpenVMS client, it took 6 hours just to bring back 2GB of data.
Now these results where compounded by manual tape mounts, and a storage pool
that does not use collocation. However, in restoring an HP-UX client, I've
seen 22GB/hour restore times.
As a result, we are investigating the use of collocation for certain clients
to reduce the amount of tape mounts required in a DR or restore procedure.
This will greatly impact the processing ability of the 3466 and will
increase the tape I/O. Frequest reclamations should also help.
Keenan D. Stratton
ISI / Mars, Inc.
Technical Analyst
Keenan AT Webname DOT com
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Keenan Stratton <=
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