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Re: Two hard drives --- what to do with them?

From: "Peter Kovacs" <maxottovonstirlitz(at)gmail(dot)com>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Carlos Moreno" <moreno_pg(at)mochima(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Two hard drives --- what to do with them?
Date: 2007-02-25 22:11:01
Message-ID: b6e8f2e80702251411q5a27eb53re9c2a299b8e3880a@mail.gmail.com (view raw or flat)
Thread:
Lists: 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(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Carlos Moreno <moreno_pg(at)mochima(dot)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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