[Linux-cluster] OCFS2 and SAN MultiPath I/O

Flavio Junior billpp at gmail.com
Wed Apr 22 19:10:37 UTC 2009


On Wed, Apr 22, 2009 at 2:50 PM, Joel Becker <Joel.Becker at oracle.com> wrote:
>
>        What's the oops look like?  You shouldn't get an oops from a
> path going down.  If you do, of course the machine is going to reboot -
> it's in a broken state.  You're using RDAC, not dm-multipath, so I'm
> betting you have to ask IBM why their multipath code is oopsing.
>        As a short sanity check, make sure ocfs2 is mounted on the
> multipath device, not a component path.
>

Hi Joel, thanks for the answer...

OK, but i'm not sure about a kernel oops being executed.

I'd change panic_on_oops to 0 and it work "as expected" (well, you
will see that I wasnt totally sincere about my setup. I'm using RHCS
and gfs too :X)

Here is the paste of /var/log/messages from the remaining node
(panic_on_oops=0) when I turn off the fiber switch for primary path.

http://rafb.net/p/TgLoWH71.html


> Joel
>


Thanks again,

--

Flávio do Carmo Júnior aka waKKu




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