[dm-devel] NIC and HBA based multipathing

[malahal at us.ibm.com]

On redhat, there is a script (can't recollect but rc.sysinit, I believe)
that creates this without multipathd.  You do need multipathd though for
renaming/creating/acting on multipath events there after.

Thanks, Malahal.

Scott Moseman [scmoseman at gmail.com] wrote:
> On Nov 6, 2007 5:01 PM, Mike Anderson <andmike at linux.vnet.ibm.com> wrote:
> >
> > > > > # mount /dev/sdb1 /sanHBA
> > > > > mount: /dev/sdb1 already mounted or /sanHBA busy
> >
> > Are there any dm messages in the dmesg output?
> >
> > Are you sure dm multipath did not grab the device(s) on boot?
> >
> > What is the output of multipath -l?
> >
> 
> # multipath -l
> 30690a018f015191a6472441d1500f057
> [size=4 GB][features="0"][hwhandler="0"]
> \_ round-robin 0 [active]
>  \_ 1:0:1:0 sdb 8:16 [active]
> 
> I guess that might explain it, huh?  However, I disabled the service...
> 
> # service multipathd status
> multipathd is stopped
> 
> So I was assuming that it wasn't going to be firing up.  Obviously I'm
> missing something.
> 
> Thanks!
> Scott
> 
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