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From: Sander Steffann <steffann@nederland.net>
To: pgsql-performance@postgresql.org
To: Ron <rjpeace@earthlink.net>
Subject: Re: What's the best hardver for PostgreSQL 8.1?
Date: Sat, 24 Dec 2005 23:54:19 +0100
Message-ID: <001301c608dc$f9b2cdb0$64c8a8c0@balefirehome> (raw)
References: <43A84D03.7090002@ritek.hu>
	<docq5v$24ea$1@news.hub.org>
	<200512212209.50234.caseroj@comcast.net>
	<200512212231.55100.caseroj@comcast.net>
	<20051224135042.484c6e32.frank@wiles.org>
	<6.2.5.6.0.20051224161551.01dc5d98@earthlink.net>
	<43ADC0A8.20503@commandprompt.com>
	<6.2.5.6.0.20051224171301.01dd4e00@earthlink.net>

Hi,

> b= Once a HD failure takes place, you suffer a _permenent_ performance 
> drop, even after the automatic volume rebuild, until you take the entire 
> RAID 50 array off line, reinitialize it, and rebuild it from scratch.

Where did you get that crazy idea? When you have replaced the drive and the 
RAID is rebuilt, you have exactly the same situation as before the drive 
failed. Why would you get less performance?
Sander.





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