Re: Two hard drives --- what to do with them? - Mailing list pgsql-performance

From Peter Kovacs
Subject Re: Two hard drives --- what to do with them?
Date
Msg-id b6e8f2e80702251411q5a27eb53re9c2a299b8e3880a@mail.gmail.com
Whole thread Raw
In response to Re: Two hard drives --- what to do with them?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Two hard drives --- what to do with them?  (Jeff Davis <pgsql@j-davis.com>)
Re: Two hard drives --- what to do with them?  (Bruno Wolff III <bruno@wolff.to>)
List pgsql-performance
A related question:
Is it sufficient to disable write cache only on the disk where pg_xlog
is located? Or should write cache be disabled on both disks?

Thanks
Peter

On 2/25/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Carlos Moreno <moreno_pg@mochima.com> writes:
> > The question is: does PostgreSQL have separate, independent areas that
> > require storage such that performance would be noticeably boosted if
> > the multiple storage operations could be done simultaneously?
>
> The standard advice in this area is to put pg_xlog on a separate
> spindle; although that probably is only important for update-intensive
> applications.  You did not tell us anything about your application...
>
>                         regards, tom lane
>
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