[CentOS] CentOS Digest, Vol 60, Issue 13

Wed Jan 13 18:30:01 UTC 2010
Emanuel Machado <emachado at cytonomest.com>

Another issue to consider with SSDs is that they are based on Flash technology. Each flash cell can only be written on about 10,000 to 100,000 times or so (*), so if you're using extensive read/write on your server you will be impacted. SSD manufacturers go around this issue by giving some intelligence to the drive controllers, so that they minimize the per-cell usage (which means moving things around a bit internally, transparently to you), so in many cases you will not see any impact. However, I would be careful on what I run on it, and what services are enabled, maybe having another disk around for write intensive apps.

Emanuel

(*) http://en.wikipedia.org/wiki/Solid-state_drive#Disadvantages

----
Emanuel Machado, PhD.
Senior Engineer, Project Leader

 

Cytonome/ST, LLC.
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From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of centos-request at centos.org
Sent: Wednesday, January 13, 2010 12:00 PM
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Subject: CentOS Digest, Vol 60, Issue 13

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