>> On Fri, 18 Aug 2006 09:23:06 -0700, "Gill, Geoffrey L." <GEOFFREY.L.GILL AT 
>> SAIC DOT COM> said:

> This is a 6h1 with 4 processors and 4Gb memory. Disks are SSA, 2
> controllers and 4 full D40's for TSM DB, Logs and disk pools. All
> disk JBOD. GIG nic that when at it's peak only 50% utilized.

4 full D40s, JBOD, for the database?  Ouchie. There's my leading
candidate for performance problems.

I suggest one VG with a bunch of non-raided disks in it, raw LVs one
or two to a spindle, with mirrors on separate spindles, for DB and
log.

- Allen S. Rout