Re: postgresql random io test with 2 SSD Kingston V+100 500GB in (software) Raid1

From: Laurent Laborde <kerdezixe(at)gmail(dot)com>
To: Jeff <threshar(at)torgo(dot)978(dot)org>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: postgresql random io test with 2 SSD Kingston V+100 500GB in (software) Raid1
Date: 2011-04-20 14:01:22
Message-ID: BANLkTinvB0F+f6fs1f-jG82WkEWKmRshTw@mail.gmail.com
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On Wed, Apr 20, 2011 at 2:39 PM, Jeff <threshar(at)torgo(dot)978(dot)org> wrote:
>
> The performance here looks like the old jmicron based ssds that had
> absolutely abysmal performance - the intel x25s do not suffer like this. The
> x25's however suffer from the power durability Greg has mentioned.  (And
> they will eventually need to be security erase'd to restore performance -
> you'll start getting major write stalls). Looks like you were on the cusp of
> stalling here.

A review of the V+100 on the excellent anandtech :
http://www.anandtech.com/show/4010/kingston-ssdnow-v-plus-100-review

> btw, yay pgiosim! :)

yay \o/

--
Laurent "ker2x" Laborde
Sysadmin & DBA at http://www.over-blog.com/

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