ADSM-L

Re: Collocation from nocollocation

2003-07-29 19:10:35
Subject: Re: Collocation from nocollocation
From: Steve Harris <Steve_Harris AT HEALTH.QLD.GOV DOT AU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 30 Jul 2003 09:06:24 +1000
Bill,

1. I think 1 tape pool is a bad idea.  Not every machine needs a fast recovery 
and big database backups won't benefit much from it.  Split your nodes into 
different domains and don't collocate the tape stgpool of one of them.
2. Insert your new collocated tape pool between disk and the current tapepool.  
Use maxscr as others have indicated.  In the unlikely event that you ever 
completely fill up the collocated pool it wil automatically flow into the 
non-collocated one and no data will be lost. 

HTH

Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia


>>> Bill_Rosette AT PAPAJOHNS DOT COM 30/07/2003 1:22:53 >>>
Hi TSM'ers

      Has anybody out there gone from 3 years of nocollocation and then
changed to collocation for better restores.  We are currently at 2-3+ TB of
info on 540 tapes (this is all in our 1 TAPEPOOL).  We have about 410
scratch tapes and the uppers are worried about making the global switch to
collocate will cause TSM to crash due to no scratch tapes.  Also if there
are any other gotcha's I would be greatly appreciated.  Maybe even send
you, some of our greatest pizza haha.

Thank You,
Bill Rosette
Data Center/IS/Papa Johns International
WWJD



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