Randy, see inline...

On 7/10/07, Randy Johnson <randyjo@(protected):
>      "If using hardware RAID, make sure LUN stripe size is as close to
> 1mb as possible"

Well, that seems to be a workaround when DBA don't have final say (i.
e. more or less real life). Unfortunately, not every SAN box supports
large stripe sizes. Plus, as I said, sometimes smaller sizes might
improve performance a little. On the other hand - 5-10% improvements
by sacrificing manageability is not what you usually want.

> Truth is I'm still considering which is better. Seems like the premise of
> improving performance using plaid is that you spread the physical read out
> across multiple spindles. Perhaps a RAID 5 configuration is where plaid
> would be more applicable. For example each LUN being a 4/8 disk RAID group.

www.baarf.com. ;-)

Cheers,
Alex


--
Alex Gorbachev, Oracle DBA Brewer, The Pythian Group
http://www.pythian.com/blogs/author/alex http://www.oracloid.com
BAAG party - www.BattleAgainstAnyGuess.com
--
http://www.freelists.org/webpage/oracle-l