ADSM-L

Question on Collocation with 7337 library

2001-01-10 03:38:05
Subject: Question on Collocation with 7337 library
From: Eric Tang <tangeric AT HK1.IBM DOT COM>
Date: Wed, 10 Jan 2001 16:25:40 +0800
Hi All,

Environment:
TSM v3.7.3
IBM7337 library (15 slots) with around 10 tapes for onsite tape pool
status full, a cleaning tape and 3 to 4 scratch tapes
Currently there are around 40 nodes defined in TSM
a few more nodes are coming and backup data volume on existing nodes is
expected to grow, so there will be move media operation soon
there is only one onsite tape storage pool defined and that is having
collocation off

To improve restore performance, I am thinking of turning on collocation for
onsite tape pool. But there are more nodes than number
of slot in library,  should I define maxscratch=N and let TSM to collocate
data on the 40 nodes within the N tapes. Keep monitoring tape usage and
adjust  N whenever necessary. Any suggestion on the setup and the number N?

Thanks in advance.




Regards,
Eric Tang
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