Subject: Re: availability of SATA vendors
From: "Joshua D. Drake" <jd@commandprompt.com>
To: Jeff Frost <jeff@frostconsultingllc.com>
Cc: Luke Lonergan <llonergan@greenplum.com>, pgsql-performance@postgresql.org
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 <Pine.LNX.4.64.0611211750200.6794@discord.home.frostconsultingllc.com>
References: <C1838B9E.B2B5%llonergan@greenplum.com>
	<Pine.LNX.4.64.0611211750200.6794@discord.home.frostconsultingllc.com>
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Organization: Command Prompt, Inc.
Date: Tue, 21 Nov 2006 18:13:21 -0800
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> ASAcomputers has been the most helpful of all the vendors so far, so thanks 
> for point me at them.  I know you've been posting results with the Areca and 
> 3ware controllers, do you have a preference for one over the other?  It seems 
> that you can only get 256MB cache with the 3ware 9550SX and you can get 512MB 
> with the 9650SE, but only the Areca cards go up to 1GB.

Don't count out LSI either. They make a great SATA controller based off
their very well respected SCSI controller.

Sincerely,

Joshua D. Drake

> 
> I'm curious how big a performance gain we would see going from 256MB cache to 
> 512MB to 1GB.  This is for a web site backend DB which is mostly read 
> intensive, but occassionally has large burts of write activity due to new user 
> signups generated by the marketing engine.
> 
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