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Re: Peformance Tuning Opterons/ Hard Disk Layout

From: Markus Schaber <schabios(at)logi-track(dot)com>
To: John Allgood <john(at)turbocorp(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org, john(at)arbash-meinel(dot)com
Subject: Re: Peformance Tuning Opterons/ Hard Disk Layout
Date: 2005-02-28 08:10:36
Message-ID: 4222D1FC.1020007@logi-track.com (view raw or flat)
Thread:
Lists: pgsql-performance
Hi, John,

John Allgood schrieb:
> My question is what is the best way to setup
> postgres databases on different disks. I have setup multiple postmasters
> on this system as a test. The only problem was configuring each
> databases "ie postgresql.conf, pg_hba.conf".  Is there anyway in
> postgres to have everything in one cluster and have it seperated onto
> multiple drives.

Using PostgreSQL 8.0, the newly introduced "tablespaces" solve all this:
http://www.postgresql.org/docs/8.0/interactive/manage-ag-tablespaces.html

Using PostgreSQL 7.4, you can relatively easy create single databases on
different drives. However, separating out single tables or indices
involves some black symlink magic. See google and
http://www.postgresql.org/docs/7.4/interactive/manage-ag-alternate-locs.html

HTH,
Markus
-- 
markus schaber | dipl. informatiker
logi-track ag | rennweg 14-16 | ch 8001 z├╝rich
phone +41-43-888 62 52 | fax +41-43-888 62 53
mailto:schabios(at)logi-track(dot)com | www.logi-track.com

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