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Date: Mon, 25 Feb 2008 18:42:28 +0100
From: "Ivan Voras" <ivoras@freebsd.org>
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To: "John Baldwin" <jhb@freebsd.org>
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References: <37427D4BD8F5714F9E2431023DD081AC02CDF186@EAEDUMW004.eemea.ericsson.se>
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Subject: Re: PC Specifications for Free BSD
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On 25/02/2008, John Baldwin <jhb@freebsd.org> wrote:
> On Sunday 17 February 2008 08:27:29 am Ivan Voras wrote:

>  > A friend of mine had problems with x3250; specifically with the mpt disk
>  > controller he got shipped with it (LSI 1064E SAS/RAID). The problem
>  > manifests in low IO performance on the drives and it's apparently
>  > something in the driver. If you can verify that your machine doesn't
>  > have this controller, or you don't care about disk IO performance, it's
>  > a good enough machine.
>
>  Did you use SATA disks?  There was a recent patch a few months ago to make the
>  mpt(4) driver enable the write-cache on SATA disks.  It may require changing
>  a loader tunable to enable it by default though.

Good idea, he probably did use SATA. I'll tell him about it.