From: Greg Smith <greg@2ndquadrant.com>
To: Grzegorz Jaśkiewicz <gryzman@gmail.com>
Cc: postgres performance list <pgsql-performance@postgresql.org>
Subject: Re: raid10 write performance
Date: Tue, 22 Jun 2010 10:40:31 -0400
Message-ID: <4C20CB5F.2030000@2ndquadrant.com> (raw)
In-Reply-To: <AANLkTinbKXufTYhNuhNaOW2kWM-simIL3dg0uFX7Ij6g@mail.gmail.com>
References: <AANLkTinbKXufTYhNuhNaOW2kWM-simIL3dg0uFX7Ij6g@mail.gmail.com>
Grzegorz Jaśkiewicz wrote:
> raid: serveRAID M5014 SAS/SATA controller
>
Do the "performant servers" have a different RAID card? This one has
terrible performance, and could alone be the source of your issue. The
ServeRAID cards are slow in general, and certainly slow running RAID10.
--
Greg Smith 2ndQuadrant US Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com www.2ndQuadrant.us
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To: pgsql-performance@postgresql.org
Cc: greg@2ndquadrant.com, gryzman@gmail.com
Subject: Re: raid10 write performance
In-Reply-To: <4C20CB5F.2030000@2ndquadrant.com>
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