Received: from maia.hub.org (unknown [200.46.208.211])
	by mail.postgresql.org (Postfix) with ESMTP id 73430632D33
	for <pgsql-performance-postgresql.org@mail.postgresql.org>;
	Tue,  2 Mar 2010 19:57:37 -0400 (AST)
Received: from mail.postgresql.org ([200.46.204.86])
	by maia.hub.org (mx1.hub.org [200.46.208.211]) (amavisd-maia,
	port 10024) with ESMTP id 49958-08
	for <pgsql-performance-postgresql.org@mail.postgresql.org>;
	Tue,  2 Mar 2010 23:57:20 +0000 (UTC)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
Received: from moutng.kundenserver.de (moutng.kundenserver.de
	[212.227.126.171])
	by mail.postgresql.org (Postfix) with ESMTP id A38F7632D19
	for <pgsql-performance@postgresql.org>;
	Tue,  2 Mar 2010 19:57:26 -0400 (AST)
Received: from [192.168.1.3] (pool-96-244-14-10.bltmmd.fios.verizon.net
	[96.244.14.10])
	by mrelayeu.kundenserver.de (node=mreu1) with ESMTP (Nemesis)
	id 0MKv1o-1Nmbxp0UQy-000FP9; Wed, 03 Mar 2010 00:57:23 +0100
Message-ID: <4B8DA5DF.8060501@2ndquadrant.com>
Date: Tue, 02 Mar 2010 18:57:19 -0500
From: Greg Smith <greg@2ndquadrant.com>
User-Agent: Thunderbird 2.0.0.23 (X11/20090817)
MIME-Version: 1.0
To: Scott Marlowe <scott.marlowe@gmail.com>
CC: david@lang.hm, Francisco Reyes <lists@stringsutils.com>,
	Pgsql performance <pgsql-performance@postgresql.org>
Subject: Re: 10K vs 15k rpm for analytics
References: <cone.1267562557.293175.32557.1000@shelca>	
	<alpine.DEB.2.00.1003021313310.5131@asgard.lang.hm>
	<dcc563d11003021321u64a90ef7ybaf9113fd3ec1c28@mail.gmail.com>
In-Reply-To: <dcc563d11003021321u64a90ef7ybaf9113fd3ec1c28@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Provags-ID: V01U2FsdGVkX1/Lq6UpvcRbMugZebmmQN3bVjfYEXle5zR9zuh
	MMkNUnAB5uQkSYgPf5//Jt3tNPI/Gn/TXMatcLi4ZkcjF3ff4h
	bkVFVWQ+K8LgAq9RDbZM5UBLY81lPcu
X-Virus-Scanned: Maia Mailguard 1.0.1
X-Spam-Status: No, hits=-1.074 tagged_above=-10 required=5 tests=AWL=-1.075,
	BAYES_50=0.001
X-Spam-Level: 
X-Archive-Number: 201003/45
X-Sequence-Number: 37870

Scott Marlowe wrote:
> True, I just looked at the Hitachi 7200 RPM 2TB Ultrastar and it lists
> and average throughput of 134 Megabytes/second which is quite good.
>   

Yeah, but have you tracked the reliability of any of the 2TB drives out 
there right now?  They're terrible.  I wouldn't deploy anything more 
than a 1TB drive right now in a server, everything with a higher 
capacity is still on the "too new to be stable yet" side of the fence to me.

-- 
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com   www.2ndQuadrant.us