Re: Backup causing poor performance - suggestions

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From: Scott Marlowe <scott.marlowe@gmail.com>
To: Campbell, Lance <lance@uiuc.edu>
Cc: pgsql-performance@postgresql.org
Subject: Re: Backup causing poor performance - suggestions
Date: Mon, 5 May 2008 09:54:15 -0600
Message-ID: <dcc563d10805050854k676d1288kc637612b02426b3d@mail.gmail.com> (raw)
In-Reply-To: <B10E6810AC2A2F4EA7550D072CDE8760CDDD2D@SAB-FENWICK.sab.uiuc.edu>
References: <B10E6810AC2A2F4EA7550D072CDE8760CDDD2C@SAB-FENWICK.sab.uiuc.edu>
	<dcc563d10805050805t197e9c02ue1a5b09144c6a8f7@mail.gmail.com>
	<B10E6810AC2A2F4EA7550D072CDE8760CDDD2D@SAB-FENWICK.sab.uiuc.edu>

On Mon, May 5, 2008 at 9:10 AM, Campbell, Lance <lance@uiuc.edu> wrote:
> Scott,
>  The server is a Dell PowerEdge 2900 II with the standard Perc 6/I SAS
>  controller with 256 MB cache.

It's probably not gonna win any awards, but it's not too terrible.

What does vmstat 1 say during your backups / normal operation?  The
last four or five columns have the most useful data for
troubleshooting.

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