Re: Intel's X25-M SSD

From: Greg Smith <gsmith(at)gregsmith(dot)com>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Intel's X25-M SSD
Date: 2008-09-20 03:23:32
Message-ID: Pine.GSO.4.64.0809192316340.19112@westnet.com
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On Mon, 8 Sep 2008, Merlin Moncure wrote:

> What's interesting about the X25 is that they managed to pull the
> numbers they got out of a MLC flash product. They managed this with a
> DRAM buffer and the custom controller.

I finally found a good analysis of what's wrong with most of the cheap MLC
drives:

http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=3403&p=7

240ms random write latency...wow, no wonder I keep hearing so many reports
of cheap SSD just performing miserably. JMicron is one of those companies
I really avoid, never seen a design from them that wasn't cheap junk.
Shame their awful part is in so many of the MLC flash products.

--
* Greg Smith gsmith(at)gregsmith(dot)com http://www.gregsmith.com Baltimore, MD

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