[dm-devel] [PATCH 09/18] Make multipath deactivate devices before iscsi shutdown

[Benjamin Marzinski]

On Mon, Oct 12, 2015 at 09:05:07AM +0200, Hannes Reinecke wrote:
> On 10/08/2015 09:44 PM, Benjamin Marzinski wrote:
> > The multipath devices need to be deactivated before iscsi is shutdown,
> > otherwise the multipath devices will generate a lot of error messages
> > when it loses its iscsi path devices.
> > 
> > Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
> > ---
> >  multipathd/multipathd.service | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/multipathd/multipathd.service b/multipathd/multipathd.service
> > index b5b755b..fc2e009 100644
> > --- a/multipathd/multipathd.service
> > +++ b/multipathd/multipathd.service
> > @@ -1,5 +1,6 @@
> >  [Unit]
> >  Description=Device-Mapper Multipath Device Controller
> > +Requires=blk-availability.service
> >  Before=iscsi.service iscsid.service lvm2-activation-early.service
> >  Before=local-fs-pre.target
> >  After=multipathd.socket
> > 
> 
> This will limit multipath to run on root-on-iSCSI scenarios. You
> cannot run multipath on non-iSCSI and have a non-root share on iSCSI
> after this change.
> Is that intended?

Huh? This doesn't stop multipath from being set up on non-root iscsi
devices. It just means that before systemd shuts down iscsi in the
shutdown initramfs, it will attempt to disassemble the multipath device,
if possible.  I'm not sure what your objection here is. Am I missing
something?

-Ben

> 
> Cheers,
> 
> Hannes
> -- 
> Dr. Hannes Reinecke		               zSeries & Storage
> hare at suse.de			               +49 911 74053 688
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