Re: pg_xlog safety - Mailing list pgsql-general

From Andrew Sullivan
Subject Re: pg_xlog safety
Date
Msg-id 20030127181228.B9007@mail.libertyrms.com
Whole thread Raw
In response to Re: pg_xlog safety  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: pg_xlog safety
List pgsql-general
On Sun, Jan 26, 2003 at 05:26:15PM -0500, Bruce Momjian wrote:
>
> If you raid has battery-backed RAM cach in your controller, there is no
> advantage to putting WAL on a separate disk --- was that the case?

That was always my view, as well.  But someone presented me with an
argument that it would somehow be better to use separate disks inside
the array in order to make this faster (i.e. it'd still be faster
because there'd be no contention for spindles).  So, I tried it, but
I could see no difference no matter what I did.

A

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Andrew Sullivan                         204-4141 Yonge Street
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<andrew@libertyrms.info>                              M2P 2A8
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