ADSM-L

Re: [ADSM-L] guide for sizing storage pools

2010-08-04 17:42:31
Subject: Re: [ADSM-L] guide for sizing storage pools
From: "Prather, Wanda" <wPrather AT ICFI DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 4 Aug 2010 21:41:05 +0000
1) ROT:  If you are planning to back up to disk and migrate to tape, your disk 
pool should be large enough to hold at least one complete night's backup.  
(That way if you have tape drive problems in the middle of the night, your 
backups will continue to run and you can kick the robot in the morning.)

2) One, until you have a really good reason to make more.  If you have all your 
space in 1 pool, TSM can make the most flexible use of it.  (If you have it 
divided into 2 pools, Murphy will insure that one pool will run out of space on 
the day the other is only 10% used.)  An example of needing 2 disk pools:  you 
are creating 2 tape pools, one which will be copied to go offsite and the other 
not copied to go offsite.  If you want to migrate to 2 separate tape pools, you 
have to start with 2 separate disk pools.  

Backing up different types of OS, having different domains with different 
retention times, etc. do not require any type of pool separation.  Use 1 as 
long as you can, let TSM do the work for you..

W




-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Dana Holland
Sent: Wednesday, August 04, 2010 5:32 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] guide for sizing storage pools

A typical newbie question, I'm sure - but is there a guide to help
determine how to size storage pools?  And how many storage pools you
should create?  I found a Redbook from 2006, but is there anything more
recent?


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