> I once read in an O'Reilly book on tuning Solaris about RAID-50. That's
> right multiple RAID-5 disk sets each treated as a single logical drive then
> striped with RAID-0. The book said that if built correctly load balancing
> could make performance approach RAID-10 at considerably lower cost for VERY
> large storage arrays.
>
> Have any list members had experience with RAID-50?
There have been a few recent discussions on the pg-performance mailing list
that touched on RAID-50. I'm sorry, but I don't remember the conclusions (if
there were any). I'd suggest a peek at the archives.
Are you researching this for Postgresql Solaris? I would certainly appreciate
hearing about any of your findings, especially if this is for a
PG/Solaris/LVM combination.
Regards,
Michael