Message-ID: <4C6378F7.9040000@2ndquadrant.com>
Date: Thu, 12 Aug 2010 00:30:47 -0400
From: Greg Smith <greg@2ndquadrant.com>
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To: Scott Carey <scott@richrelevance.com>
CC: Michael March <mmarch@gmail.com>,
	"pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>
Subject: Re: Completely un-tuned Postgresql benchmark results: SSD
	vs desktop HDD
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	<BAE01AAD-6C69-48C7-BD2E-77E463D49903@richrelevance.com>
	<AANLkTi=km+H+mZ=yyx0_HTFZ-yU2sh85D+p5cs+ZcUSF@mail.gmail.com>
	<A1640F99-A7C5-4F04-9A25-782C46BE7DAB@richrelevance.com>
	<4C617C80.9080509@2ndquadrant.com>
	<72E29316-5F4C-4A01-8924-5340DF2FAE65@richrelevance.com>
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Scott Carey wrote:
> What is the likelihood that your RAID card fails, or that the battery that reported 'good health' only lasts 5 minutes and you lose data before power is restored?   What is the likelihood of human error?
>   

These are all things that happen sometimes, sure.  The problem with the 
cheap SSDs is that they happen downright often if you actually test for 
it.  If someone is aware of the risk and makes an informed decision, 
fine.  But most of the time I see articles like the one that started 
this thread that are oblivious to the issue, and that's really bad.

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