Re: suggestions for postgresql setup on Dell 2950 , PERC6i controller

--- On Thu, 5/2/09, Matt Burke <mattblists@icritical.com> wrote:

> From: Matt Burke <mattblists@icritical.com>
> Subject: Re: [PERFORM] suggestions for postgresql setup on Dell 2950 , PERC6i  controller
> To: pgsql-performance@postgresql.org
> Date: Thursday, 5 February, 2009, 12:40 PM
> Arjen van der Meijden wrote:
>
> > Afaik the Perc 5/i and /e are more or less rebranded
> LSI-cards (they're
> > not identical in layout etc), so it would be a bit
> weird if they
> > performed much less than the similar LSI's
> wouldn't you think?
>
> I've recently had to replace a PERC4/DC with the exact
> same card made by
> LSI (320-2) because the PERCs firmware was crippled. Its
> idea of RAID10
> actually appears to be concatenated RAID1 arrays.
>

Did you try flashing the PERC with the LSI firmware?

I tried flashing a PERC3/dc with LSI firmware, it worked fine but I saw no difference in performance so I assumed it
mustbe somethign else on the board that cripples it.