-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Stapleton, Mark
Sent: Wednesday, July 21, 2004 9:40 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: storage pool raid 1?


From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On 
Behalf Of Daniel Sparrman

In my experience, I see almost no case for fault tolerance in TSM-based
disk systems that normally perform a daily migration to a tape-based
primary storage pool. If a system crashing prior to migration worries
you, perform your migration as early in the day as you can after clients
finish running their backups to a cached disk pool.


What would be wrong with running migration during the backup process?  I have 
client backups running around the clock and I also run migration around the 
clock. I have a lot fewer disk drive than storage pools, so I have a process 
that runs migration on one disk pool at a time.  I've had no issues with 
performance, but I was wondering if I've overlooked any other got-you's

Ray Baughman