Could you elaborate on why the log should be in smaller volumes?  I have
always heard the DB should, because it opens multiple threads with multiple
volumes, but since the log is sequentially written to for the most part, I
can't figure out why that should be in multiple volumes.  Thanks.

On 7/30/07, Charles A Hart <charles_hart AT uhc DOT com> wrote:
>
> 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
> Please respond to
> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
>
> To
> ADSM-L AT VM.MARIST DOT EDU
> cc
>
> Subject
> 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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--
Andy Carlson
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