Re: fine tuning for logging server - Mailing list pgsql-performance

From Florin Andrei
Subject Re: fine tuning for logging server
Date
Msg-id 1112235878.12159.22.camel@stantz.corp.sgi.com
Whole thread Raw
In response to Re: fine tuning for logging server  (John Arbash Meinel <john@arbash-meinel.com>)
Responses Re: fine tuning for logging server  (John Arbash Meinel <john@arbash-meinel.com>)
List pgsql-performance
On Wed, 2005-03-30 at 19:59 -0600, John Arbash Meinel wrote:

> Put pg_xlog onto the same drive as the OS, not the drive with the database.

I forgot to mention: the OS drive is purposefully made very slow - the
write cache is turned off and the FS is Ext3 with data=journal. Is then
still ok to put pg_xlog on it?

The reason: if the power cord is yanked, the OS _must_ boot back up in
good condition. If the DB is corrupted, whatever, nuke it then re-
initialize it. But the OS must survive act-of-god events.

No, there is no uninterruptible power supply. It sucks, but that's how
it is. I cannot change that.

--
Florin Andrei

http://florin.myip.org/


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