Re: performance drop on RAID5 - Mailing list pgsql-performance

From Rosser Schwarz
Subject Re: performance drop on RAID5
Date
Msg-id 37d451f70508240935315add63@mail.gmail.com
Whole thread Raw
In response to performance drop on RAID5  (Alexandre Barros <alexandre@vectorx.com.br>)
List pgsql-performance
On 8/24/05, Alexandre Barros <alexandre@vectorx.com.br> wrote:

> i wouldn't be so stunned if the newer machine was ( say ) twice faster
> than the older server, but over three times faster is disturbing.

RAID5 on so few spindles is a known losing case for PostgreSQL.  You'd
be far, far better off doing a pair of RAID1 sets or a single RAID10
set.

/rls

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:wq

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