Depents of the amount and type of data each node stores in TSM, the number of tape drives and the tapetechnologie used.
If you backup databases you can dump this data in one storagepool.
THhis keeps admin sched down.. and tapeutillasation up with out significantly decreasing restore speed.
If you are backing up large filesystems with few drives you want collocation.
This to minimise tape mounts..
If you are backing up large filesystems with a lot of drives you dont wand collocation becaus you want as much tapemounts as possible.
Large file system restores from LTO are very slow, large filesystems on magstar are faster...
Do your self a favour and check restore speeds of largefilesystems after a couple mounts when reclamation and incrementals have scatterd al file system data over the tapes......of if collocation works..
Succes,
Koen.
From: Ray Baughman <[EMAIL PROTECTED]> Reply-To: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Collocation Vs Multiple Storage Pools Date: Fri, 26 Sep 2003 09:44:06 -0400
I've got a storage pool which contains data from 5 Nodes, which has collocation turn on. What are the pros and cons of running this way as opposed to having 5 separate storage pools? I was thinking management of the pools, but with only five pools this does not seem an issue. Also by having individual pools, I could easily find the tapes associated with a node. Any Ideas?
Ray Baughman TSM & Engineering Systems Administrator National Machinery LLC Phone 419-443-2257 Fax 419-443-2376 Email [EMAIL PROTECTED]
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