Date: Sat, 15 Oct 2005 00:29:25 -0600
From: Robert Hancock <hancockr@shaw.ca>
Subject: Re: Anybody know about nforce4 SATA II hot swapping + linux raid?
In-reply-to: <4XMt3-7Yt-5@gated-at.bofh.it>
To: linux-kernel <linux-kernel@vger.kernel.org>
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Lajber Zoltan wrote:
> We have about 7 serverraid card from 4L to 5i. All of them is sitting on
> shelf. They are pain to manage, ipssend tool is weak, serverdirector
> complicated. And they are slow, the Fusion MPT SCSI with sw raid
> significant faster, as we measured with bonnie++. Even the old aic7892 is
> faster (these built-in scsi controllers on xseries motherboards).

The 6i and 7 series of cards seem to have quite a bit better relative 
speeds. Certainly the 4Lx cards can be outperformed in simple "hdparm" 
tests by a 3ware SATA controller/disks of half the price..

Plus, software RAID can't provide good performance on many server/DB 
applications without risking data loss in certain cases - for such 
things one really wants something with a battery-backed cache on it..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/

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