ADSM-L

Re: [ADSM-L] TSM performance very poor, Recovery log is being pinned

2007-07-30 07:32:10
Subject: Re: [ADSM-L] TSM performance very poor, Recovery log is being pinned
From: Charles A Hart <charles_hart AT UHC DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 30 Jul 2007 06:29:31 -0500
Your DB and Log shold be RAW as well, and in small vols.  (ie 12GB log
should be in 2-3GB VOls, DB, vols, depengin on size of db should be 5-10GB
vols.  Also try to make sure the raw logical vols are evenly spread
accross as many LUNs as possible.

Charles Hart





"Stapleton, Mark" <mark.stapleton AT BERBEE DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
07/29/2007 07:03 AM
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Re: [ADSM-L] TSM performance very poor, Recovery log is being pinned






From: ADSM: Dist Stor Manager on behalf of Craig Ross
>TSM is installed on Solaris 10

This is something that popped right out for me. Do you have your storage
pools located on raw logical volumes or mounted filesystems? If the
latter, that might be your problem. Solaris has traditionally had
incredibly poor throughput performance on mounted filesystems.

You might give thought to rebuilding those storage pools on raw logical
volumes. Of course, that will require that you completely flush all data
from your disk storage pools to tape storage pools first, so as not to
lose client data.

--
Mark Stapleton (mark.stapleton AT berbee DOT com)
Berbee Information Networks (a CDW company)



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