From: Robert Hancock <hancockr@shaw.ca>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Anybody know about nforce4 SATA II hot swapping + linux raid?
Date: Sat, 15 Oct 2005 00:29:25 -0600 [thread overview]
Message-ID: <4350A1C5.3080902@shaw.ca> (raw)
In-Reply-To: <4XMt3-7Yt-5@gated-at.bofh.it>
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/
next prev parent reply other threads:[~2005-10-15 6:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4UXuH-EU-31@gated-at.bofh.it>
[not found] ` <4VhD6-79H-7@gated-at.bofh.it>
[not found] ` <4VnSe-hv-15@gated-at.bofh.it>
2005-10-08 19:09 ` Anybody know about nforce4 SATA II hot swapping + linux raid? Robert Hancock
[not found] ` <4XLQk-6Z2-1@gated-at.bofh.it>
[not found] ` <4XMt3-7Yt-5@gated-at.bofh.it>
2005-10-15 6:29 ` Robert Hancock [this message]
2005-10-18 22:35 ` Bill Davidsen
2005-10-08 19:16 Allen Martin
-- strict thread matches above, loose matches on Subject: below --
2005-10-07 10:11 Andrew Walrond
2005-10-08 7:41 ` Tejun Heo
2005-10-08 14:26 ` Molle Bestefich
2005-10-08 14:55 ` Andrew Walrond
2005-10-08 15:01 ` Lukasz Kosewski
2005-10-08 15:52 ` Andrew Walrond
2005-10-10 17:47 ` Ken Hwang
2005-10-08 15:23 ` Gordon Henderson
2005-10-08 16:03 ` Andrew Walrond
2005-10-08 16:08 ` John Stoffel
2005-10-08 16:39 ` Andrew Walrond
2005-10-15 4:24 ` Bill Davidsen
2005-10-15 5:06 ` Lajber Zoltan
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