Thanks you for the link.. Good info! 


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
William F. Colwell
Sent: Friday, November 12, 2004 10:52 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: TSM and SATA Disk Pools


Charles,

See http://www.redbooks.ibm.com/abstracts/tips0458.html?Open

This was in a recent IBM redbooks newsletter.  It discusses SATA performance
and to me it says that the tsm backup diskpool is not a good use for SATA.
Sequential volumes on SATA may be ok.

Hope this helps,

Bill
At 10:21 AM 11/12/2004, you wrote:
>Been asking lots of questions lately.  ;-)
>
>
>We recently have put our TSM Disk Backup Pools on Clarrion SATA.
>        The TSM Server is being presented as 600GB SATA Chunks
>        Our Aix Admin has put a Raw logical over two 600GB Chunks to create a 
> 1.2TB Raw Logical Volume
>
>Right now we are seeing Tape migrations @ about 4GB in 6hrs, where before on 
>EMC Symetrix disk we saw 29-40GB per hour.  If anyone would like to share 
>their TSM SATA Diskpool layout and or tips we would much appreciate it!!!
>
>
>TSM Env
>AIX 5.2
>TSM 5.2.4 (64bit)
>p630 4x4
>8x3592 FC Drives
>
>Regards,
>
>Charles

----------
Bill Colwell
C. S. Draper Lab
Cambridge Ma.