From: | "Alex Turner" <armtuk(at)gmail(dot)com> |
---|---|
To: | "Markus Schaber" <schabi(at)logix-tt(dot)com> |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Performance with 2 AMD/Opteron 2.6Ghz and 8gig |
Date: | 2006-08-07 20:02:52 |
Message-ID: | 33c6269f0608071302h6429cfcn71074709c5cd53ff@mail.gmail.com |
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Lists: | pgsql-performance |
Although I for one have yet to see a controller that actualy does this (I
believe software RAID on linux doesn't either).
Alex.
On 8/7/06, Markus Schaber <schabi(at)logix-tt(dot)com> wrote:
>
> Hi, Charles,
>
> Charles Sprickman wrote:
>
> > I've also got a 1U with a 9500SX-4 and 4 drives. I like how the 3Ware
> > card scales there - started with 2 drives and got "drive speed"
> > mirroring. Added two more and most of the bonnie numbers doubled. This
> > is not what I'm used to with the Adaptec SCSI junk.
>
> Well, for sequential reading, you should be able to get double drive
> speed on a 2-disk mirror with a good controller, as it can balance the
> reads among the drives.
>
> Markus
> --
> Markus Schaber | Logical Tracking&Tracing International AG
> Dipl. Inf. | Software Development GIS
>
> Fight against software patents in EU! www.ffii.org
> www.nosoftwarepatents.org
>
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