From: "Dr. David Alan Gilbert" <dave@treblig.org>
To: subbie subbie <subbie_subbie@yahoo.com>
Cc: Jon Burgess <jburgess@uklinux.net>, linux-kernel@vger.kernel.org
Subject: Re: 3Ware 9500S-12 RAID controller -- poor performance
Date: Mon, 10 Oct 2005 11:54:23 +0100 [thread overview]
Message-ID: <20051010105423.GA11982@gallifrey> (raw)
In-Reply-To: <20051010104217.20341.qmail@web30305.mail.mud.yahoo.com>
* subbie subbie (subbie_subbie@yahoo.com) wrote:
> OK,
>
> I now dumped RAID5 and am running all of my 12 disks
> separately each partitioned with XFS.
>
>
> I did a very crude test of reading a single 1GB file
> from each of my disks in parallel by putting 12 dd
> processes into the background. Each file was read at
> approximately 35MB/s giving an aggragate of a little
> over 400MB/s. According to 3Ware support, 400MB/s is
> the "theoretical maximum" of this controller. I'm
> very happy with these results.
Nice. Have you tried Software RAID5 on top of that?
I would be very interested to know how software RAID5
goes relative to the 3Ware hardware.
Dave
--
-----Open up your eyes, open up your mind, open up your code -------
/ Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
\ _________________________|_____ http://www.treblig.org |_______/
next prev parent reply other threads:[~2005-10-10 10:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-07 21:35 3Ware 9500S-12 RAID controller -- poor performance Jon Burgess
2005-10-10 10:42 ` subbie subbie
2005-10-10 10:54 ` Dr. David Alan Gilbert [this message]
2005-10-10 11:07 ` Mikael Abrahamsson
2005-10-10 11:22 ` subbie subbie
2005-10-10 12:36 ` Mikael Abrahamsson
-- strict thread matches above, loose matches on Subject: below --
2005-09-30 6:51 subbie subbie
2005-09-30 6:50 subbie subbie
2005-10-02 0:07 ` Ian Morgan
2005-10-05 6:43 ` subbie subbie
2005-10-05 11:25 ` Dr. David Alan Gilbert
2005-10-05 13:08 ` subbie subbie
2005-10-05 13:18 ` Dr. David Alan Gilbert
2005-10-05 13:39 ` subbie subbie
2005-10-05 13:40 ` Ian E. Morgan
2005-10-06 7:34 ` subbie subbie
2005-10-03 14:34 ` Ville Herva
2005-10-05 20:07 ` Miquel van Smoorenburg
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