From: matilda matilda (matilda_at_grandel.de)
Date: Mon Jul 16 2007 - 13:56:55 CEST
Message-Id: <469B7926.117B.0044.0@grandel.de> Date: Mon, 16 Jul 2007 13:56:55 +0200 From: "matilda matilda" <matilda@grandel.de> Subject: Re: Re: [suse-sles-e] SLES 10 SP1 changes of fusion (LSI) driver
>>> Rasmus Plewe <rplewe@suse.de> 16.07.2007 13:11 >>>
>On Sun, Jul 15, 2007 at 05:32:56PM +0200, matilda matilda wrote:
>>
>> does anybody know how much and what changed in the fusion (LSI) driver
>> of SLES 10 SP1, especially in the mptsas driver?
>>
>> Reason: SAS-Storage cabinet DS3200 attached to a LSI-based SAS-HBA showed
>> severald scsi-devices per physical LUN.
>> The RDAC-driver from LSI on top of the regular MSI drivers created the real
>> mountable virtual scsi devices, which could be used to put filesystems on.
>>
>> After update to SP1 I have a totally different picture. The many scsi devices
>> are not shown anymore.
>> RDAC-driver can not be compiled, because header file scsi/scsi_request.h
>> is missing in the kernel sources.
>>
>> So, has anybody some knowledge about or experiences with that?
>
>Please use multipath-tools. RDAC is a third-party driver from LSI and
>not supported by SUSE/Novell. Contact LSI for an update.
>
>It might be that you have to edit /etc/multipath.conf to get the DS3200
>working properly.
Hi Rasmus,
thank you for your answer.
Probably my question was not precise enough.
1) I do have only one physical connection to the DS3200. So, I do have
only ONE path to a defined lun. BUT: With SLES 10 (w/o SP1) I saw
4 scsi devices when I ran 'lsscsi'. E.g.:
=======================================================================
[3:4:0:1] disk IBM 1726-2xx FAStT 0617 -
[3:4:0:2] disk IBM 1726-2xx FAStT 0617 -
[3:4:0:3] disk IBM 1726-2xx FAStT 0617 -
[3:4:0:31] disk IBM Universal Xport 0617 -
=======================================================================
Yes, when I installed SLES 10 I was wondering about that picture.
As you see there is NO device node for a detected block device.
As soon as I installed RDAC driver ontop of that, I got an additional
entry like:
=======================================================================
[5:0:0:1] disk IBM VirtualDisk 0617 /dev/sdb
=======================================================================
On this device I could operate.
Now, after installing SP1, I see a totally different picture:
I see exactly only the block device I can operate on and a controlling
scsi device as before, e.g:
=======================================================================
[3:0:0:3] disk IBM 1726-2xx FAStT 0617 /dev/sdd
[3:0:0:31] disk IBM Universal Xport 0617 -
=======================================================================
So, probably we do have a situation NOW which is as I expected it.
But something relevant changed. And I want to know what parts of the
fusion drivers changed, so that I do see a totally different situation
after upgrading. I want to get sure, that everything is fine with the
storage subsystem.
Best regards
Andreas Mock
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