From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Anderson <andmike@us.ibm.com>
Subject: Re: Problem with DM hardware handler
Date: Mon, 29 Oct 2007 23:49:30 -0700
Message-ID: <20071030064930.GA5002@us.ibm.com>
References: <110b17190710291645l42e98bc5i6089102bb1e15f9@mail.gmail.com>
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Pradipmaya Maharana <pradipmaya@gmail.com> wrote:
> Now when I run the command,
> # multipath -F
> # multipath -ll
> # multipath -v3
> 
> It shows me the following error in the /var/log/messages
> Oct 29 16:33:23 localhost kernel: device-mapper: table: 253:0:
> multipath: unknown hardware handler type
> Oct 29 16:33:23 localhost kernel: device-mapper: ioctl: error adding
> target to table
> 
> Same works fine, if I add emc as hardware handler.
> 
> Any idea, why am I getting this error?
> 

Did you see any indication prior to the dmesg error output that your
handler registered ok or failed to register (i.e., device-mapper:
dm-sample version 0.0.4 loaded)?

-andmike
--
Michael Anderson
andmike@linux.vnet.ibm.com