Re: improving write performance for logging

From: Ian Westmacott <ianw(at)intellivid(dot)com>
To: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: improving write performance for logging
Date: 2006-01-06 19:02:57
Message-ID: 1136574178.31602.13.camel@spectre.intellivid.com
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On Fri, 2006-01-06 at 10:37 -0600, Jim C. Nasby wrote:
> The problem is that if you lose WAL or the data, you've lost everything.
> So you might as well use raid0 for the data if you're using it for WAL.
> Or switch WAL to raid1. Actually, a really good controller *might* be
> able to do a good job of raid5 for WAL. Or just use raid10.

If the WAL is lost, can you lose more than the data since the last
checkpoint?

--
Ian Westmacott <ianw(at)intellivid(dot)com>
Intellivid Corp.

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