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Re: Best OS & Configuration for Dual Xeon w/4GB &

From: Vivek Khera <vivek(at)khera(dot)org>
To: Postgresql Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Best OS & Configuration for Dual Xeon w/4GB &
Date: 2006-03-22 02:22:52
Message-ID: F4DC817E-8827-4E9B-81A4-070A010E8FE1@khera.org (view raw or flat)
Thread:
Lists: pgsql-performance
On Mar 21, 2006, at 12:59 PM, Jim C. Nasby wrote:

> atapci1: <nVidia nForce4 SATA150 controller>
>
> And note that this is using FreeBSD gmirror, not the built-in raid
> controller.

I get similar counter-intuitive slowdown with gmirror SATA disks on  
an IBM e326m I'm evaluating.  If/when I buy one I'll get the onboard  
SCSI RAID instead.

The IBM uses ServerWorks chipset, which shows up to freebsd 6.0 as  
"generic ATA" and only does UDMA33 transfers.


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