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Re: raid10 write performance

From: Greg Smith <greg(at)2ndquadrant(dot)com>
To: Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
Cc: postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: raid10 write performance
Date: 2010-06-22 14:40:31
Message-ID: 4C20CB5F.2030000@2ndquadrant.com (view raw or flat)
Thread:
Lists: pgsql-performance
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(at)2ndQuadrant(dot)com   www.2ndQuadrant.us


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