Re: Performance with 2 AMD/Opteron 2.6Ghz and 8gig - Mailing list pgsql-performance

From Alex Turner
Subject Re: Performance with 2 AMD/Opteron 2.6Ghz and 8gig
Date
Msg-id 33c6269f0608071302h6429cfcn71074709c5cd53ff@mail.gmail.com
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In response to Re: Performance with 2 AMD/Opteron 2.6Ghz and 8gig  (Markus Schaber <schabi@logix-tt.com>)
Responses Re: Performance with 2 AMD/Opteron 2.6Ghz and 8gig
List 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@logix-tt.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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