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Old 02-23-2012, 07:37 PM
Steven Williamson
 
Default Bug#661057: linux-2.6: hpsa driver does not support multipath on Smart Array 712m with latest firmware

Package: linux-2.6
Severity: important
Tags: patch


The hpsa driver fails to correctly assign devices when there are
multiple paths on at least the Smart Array 712m with the latest
firmware.

The end result is only one device node is created in /dev and multipath
tools then only detect one path.

Applying the patch here:
http://www.spinics.net/lists/linux-scsi/msg56690.html
to the current stable version of the squeeze kernel fixes the issue.

This was tested on a Smart Array 712m, connected via 2 SAS switches to a
HP P2000 G3 SAS Array.



-- System Information:
Debian Release: 6.0.4
APT prefers stable
APT policy: (990, 'stable')
Architecture: i386 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash



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Old 02-26-2012, 04:36 PM
Ben Hutchings
 
Default Bug#661057: linux-2.6: hpsa driver does not support multipath on Smart Array 712m with latest firmware

On Thu, 2012-02-23 at 20:37 +0000, Steven Williamson wrote:
> Package: linux-2.6
> Severity: important
> Tags: patch
>
>
> The hpsa driver fails to correctly assign devices when there are
> multiple paths on at least the Smart Array 712m with the latest
> firmware.
>
> The end result is only one device node is created in /dev and multipath
> tools then only detect one path.
>
> Applying the patch here:
> http://www.spinics.net/lists/linux-scsi/msg56690.html
> to the current stable version of the squeeze kernel fixes the issue.
>
> This was tested on a Smart Array 712m, connected via 2 SAS switches to a
> HP P2000 G3 SAS Array.

This sounds important; why has it not been sent to Linus for 3.3 (and
cc: stable)?

Ben.

--
Ben Hutchings
Lowery's Law:
If it jams, force it. If it breaks, it needed replacing anyway.
 
Old 02-27-2012, 08:38 AM
Steven Williamson
 
Default Bug#661057: linux-2.6: hpsa driver does not support multipath on Smart Array 712m with latest firmware

Update,

I failed to mention in the original report that to get multipath working in our specific case with the P2000 G3 SAS on Debian

The commit:

commit fda38518f236cbd965110938e324f6c6fcc91f38


Author: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date:** Tue May 3 15:00:07 2011 -0500

*** [SCSI] hpsa: add P2000 to list of shared SAS devices

***

*** Signed-off-by: Scott Teel <scott.stacy.teel@hp.com>
*** Signed-off-by: James Bottomley <jbottomley@parallels.com>


*** Signed-off-by: James Bottomley <James.Bottomley@suse.de>

Also had to be applied. This is already in Linux mainline.
 

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