[dm-devel] Sun StorageTek 2530 and dm?

[Charlie Brady]

On Mon, 24 Aug 2009, Chandra Seetharaman wrote:

> On Tue, 2009-08-25 at 01:13 +0200, Jakov Sosic wrote:
>> On Mon, 24 Aug 2009 16:07:22 -0700
>> Chandra Seetharaman <sekharan at us.ibm.com> wrote:
>>
>>> scsi_dh_rdac modules is insmodded by multipath when multipathd is
>>> started (by virtue of you having hardware_handler "1 rdac" in
>>> your /etc/muliutpath.conf file.
>>>
>>> So, it is effective when multipath starts.
>>
>> If it is effective, I don't need to patch it... Thank you very much.
>>
>> You were saying that you could provide some debugging code if I'm
>> interested? Well it seems that I don't have a choice... So please do
>> so :)
>>
> Basically I want to find out if we are getting and sense codes that we
> are not handling. To that effect, andd the following line at the top of
> the function rdac_check_sense()
> --------
> sdev_printk(KERN_ERR, sdev, "I/O returned with sense %02x/%02x/%02x",
>                      sense_hdr->sense_key, sense_hdr->asc, sense_hdr->ascq);
> ---------
>
> compile the module, run your tests and get me /var/log/messages.

Might this be the same issue as you worked through with Babu last October?

http://kerneltrap.org/mailarchive/linux-scsi/2008/10/24/3803244