From: "Mathias Burén" <mathias.buren@gmail.com>
To: David Brown <david@westcontrol.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Direct disk access on IBM Server
Date: Tue, 19 Apr 2011 14:25:21 +0100 [thread overview]
Message-ID: <BANLkTi=psjvW5Lj=sr93E5caMxDAMm67JQ@mail.gmail.com> (raw)
In-Reply-To: <iok28i$tp6$1@dough.gmane.org>
On 19 April 2011 14:21, David Brown <david@westcontrol.com> wrote:
> I have recently got an IBM x3650 M3 server, which has a "Serveraid M5014"
> raid controller. Booting from a Linux CD (system rescue CD) and running
> lspci identifies this raid controller as:
>
> LSI Logic/Symbus Logic Megaraid SAS 2108 [Liberator] (rev 03)
>
> The controller works fine for hardware raid - I can open its bios setup
> utility, and set up a RAID5 (or whatever) with the disks I have. The OS
> then just sees a single virtual disk.
>
> But I would like direct access to the sata drives - I want to set up mdadm
> raid, under my own control. As far as I can see, there is no way to put
> this controller into "JBOD" or "direct access" mode of any sort.
>
> Does anyone here have experience with this card, or can give me any hints?
>
> The only idea I have at the moment is to put each disk within its own
> single-disk RAID 0 set, but then I don't get sata hot-swap functionality,
> SMART, hddtemp, etc.
>
> Thanks for any clues or hints,
>
> David
>
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>
Regarding SMART, could you try (after loading the appropriate
megaraid/megasas module) hdparm -a -d megaraid,$I /dev/sda , where $I
is a number between 0 and 31 IIRC (depending on the HDD in the array).
Regards,
M
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next prev parent reply other threads:[~2011-04-19 13:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-19 13:21 Direct disk access on IBM Server David Brown
2011-04-19 13:25 ` Mathias Burén [this message]
2011-04-19 14:04 ` David Brown
2011-04-19 14:07 ` Mathias Burén
2011-04-19 15:12 ` David Brown
2011-04-19 15:41 ` Mathias Burén
2011-04-20 8:08 ` David Brown
2011-04-19 20:08 ` Stan Hoeppner
2011-04-20 11:24 ` David Brown
2011-04-20 11:40 ` Rudy Zijlstra
2011-04-20 12:21 ` David Brown
2011-04-21 6:24 ` Stan Hoeppner
2011-04-21 11:36 ` David Brown
2011-04-23 14:05 ` Majed B.
2011-04-23 14:42 ` David Brown
2011-04-24 12:48 ` Drew
2011-04-24 20:00 ` David Brown
2011-04-24 20:25 ` Rudy Zijlstra
2011-04-25 9:42 ` David Brown
2011-04-21 3:50 ` Ryan Wagoner
2011-04-21 11:00 ` David Brown
2011-04-21 4:10 ` Stan Hoeppner
2011-04-21 11:19 ` David Brown
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