I'm not trying to make it know the disk architecture, I just want it to
evenly distribute amongst it's own dbvols.  I already took care of
distributing the dbvols across disks.  I agree that the raid1+0 route
would be best in a perfect world, but I don't have enough drive bays to
do that for dbvols and still have room left for cachevol disks.

It just didn't make sense to me that you give tsm 4 dbvols (the logical
files), and it puts 80% of its info into 1 of them instead of 25% in
each.



>>> rbs AT BU DOT EDU 11/30/2005 1:16:31 PM >>>
On Nov 30, 2005, at 11:05 AM, Troy Frank wrote:

> ...Is there some way to force tsm to evenly
> distribute the info, ...

Troy - An application is best kept ignorant of specific disk
architectures upon which it is situated.
The way to attain your goal is via disk striping.
We are using RAID 1+0 (mirrored & striped) for the TSM database,
and enjoy relative security and performance.

Richard Sims


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