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Re: Low Budget Performance

From: Mario Weilguni <mweilguni(at)sime(dot)com>
To: eric soroos <eric-psql(at)soroos(dot)net>,pgsql-performance(at)postgresql(dot)org
Subject: Re: Low Budget Performance
Date: 2002-10-29 07:07:50
Message-ID: 200210290807.50625.mweilguni@sime.com (view raw or flat)
Thread:
Lists: pgsql-performance
Am Montag, 28. Oktober 2002 22:56 schrieb eric soroos:
> Raid?
> 0 gives better latency if the controller reads from whichever gets the data
> first. It's unclear if IDE or software raid actually does this though. 1
> Gives better throughput, at a cost to latency.
> 5 Like 1 but with redundancy. It's unclear if I'll be able to do this
> without hardware SCSI raid.

Just for the raid part, we've very good expiriences with Raid 10. Performs well and has mirroring. Avoid Raid 5 if possible, write performance will suffer greatly.

Regards,
	Mario Weilguni

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