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Re: WAL and pg_dump

From: Simon Riggs <simon(at)2ndquadrant(dot)com>
To: Stephen Frost <sfrost(at)snowman(dot)net>,Mike C <smith(dot)not(dot)western(at)gmail(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: WAL and pg_dump
Date: 2005-12-23 09:48:31
Message-ID: 1135331311.2964.559.camel@localhost.localdomain (view raw or flat)
Thread:
Lists: pgsql-admin
On Fri, 2005-12-23 at 14:34 +1300, Mike C wrote:

>         Is space your limiting factor?
> 
> Yes, space is our limiting factor. A pg_dump archive format backup
> takes about 40mins for 25GB. A restore IIRC takes about 2 hours.
> However the size of the database is expected to grow to about 120 GB
> within a few months and by the end of 2006 over 400 GB. The current
> capacity of our DS 400 SAN is 600 GB. at 400GB my only backup option
> with the existing hardware is pg_dump. However I suspect now that I
> really should be looking at additional hardware.

You should be looking at backup designs that do not require you to dump
the complete database each time. That way your backup and recovery times
increase linearly.

Best Regards, Simon Riggs


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