ADSM-L

Re: Collocation question - Reduce restore times

2002-12-18 14:18:26
Subject: Re: Collocation question - Reduce restore times
From: "Prather, Wanda" <Wanda.Prather AT JHUAPL DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 18 Dec 2002 14:16:12 -0500
Yes, that will work fine.

The only other thing you should do is check the MAXSCRATCH parameter for
your primary tape pool.
(q stgpool TAPEPOOLNAME f=d)

If you leave MAXSCRATCH set to a high number, TSM will start a new tape for
each client.
If you have more than 202 clients, all your tapes will be used up at once.

In my case, I have MORE clients than I have slots in the library!
So you can set MAXSCRATCh to a lower number and limit the tapes TSM will
use.

For example, if you have 100 clients and you set MAXSCRATCH to 50, TSM will
put 2 clients per tape.
You still get most of the benefits of collocation, but it limit the number
of tapes that get used up.

************************************************************************
Wanda Prather
The Johns Hopkins Applied Physics Lab
443-778-8769
wanda_prather AT jhuapl DOT edu

"Intelligence has much less practical application than you'd think" -
Scott Adams/Dilbert
************************************************************************






-----Original Message-----
From: Elenara Geraldo [mailto:eg.le AT LYCOS DOT COM]
Sent: Wednesday, December 18, 2002 11:57 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Collocation question - Reduce restore times


Hi all,
Currently I don4t use collocation in my backup.
Any problem in to change for collocation=yes ??


I have a IBM Frame L32 - 3584, with 4 drives and 202 volumes ( 97 volumes =
private )

Thanks


---
Kind Regards,
Elenara Geraldo
Analyst Support
elenara AT mmlsystems.com DOT br






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