[dm-devel] NIC and HBA based multipathing
Mike Anderson
andmike at linux.vnet.ibm.com
Thu Nov 1 21:57:27 UTC 2007
Scott Moseman <scmoseman at gmail.com> wrote:
> On 11/1/07, Mike Christie <michaelc at cs.wisc.edu> wrote:
> > >
> > > I'm following the instructions on Red Hat's KB to setup the
> > > multipath.conf file. The modprobes were successful, the service
> > > started, but...
> > >
> > > # multipath -v2
> > > error calling out /sbin/scsi_id -g -u -s /block/sda
> >
> > So are you asking about the errors from /dev/sda being accessed by
> > multipath, or are you looking for help on adding the iscsi disks to a
> > multipath device or both :)
> >
>
> Both, I guess. I'm following the Red Hat how-to and I'm getting that
> error instead of getting a successful output. If there's an answer for
> why I'm getting the error, or an answer for how to fix my multipathd,
> I'm open to either one at this point. :)
>
> I attempted to put sda in my blacklist (per the Red Hat instructions)
> but still received the same error message about sda (the local disk).
If you trying to blacklist a device and it is still showing or when you
run multipath -v 4 the device is not listed as blacklisted then there is
most likely a problem in /etc/multipath.conf
Are you using "devnode_blacklist" as indicated in the instructions.
I believe this is incorrect and you should use something like:
blacklist {
devnode "sda"
}
-andmike
--
Michael Anderson
andmike at linux.vnet.ibm.com
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