----- Original Message -----
> From: "Lars Marowsky-Bree" <l...@suse.com>
> To: "General Linux-HA mailing list" <linux-ha@lists.linux-ha.org>
> Sent: Wednesday, December 4, 2013 3:49:17 AM
> Subject: Re: [Linux-HA] Antw: Re: SLES11 SP2 HAE: problematic change for LVM
> RA
>
> On 2013-12-04T10:25:58, Ulrich Windl <ulrich.wi...@rz.uni-regensburg.de>
> wrote:
>
> > > You thought it was working, but in fact it wasn't. ;-)
> > "working" meaning "the resource started".
> > "not working" meaning "the resource does not start"
> >
> > You see I have minimal requirements ;-)
>
> I'm sorry; we couldn't possibly test all misconfigurations. So this
> slipped through, we didn't expect someone to set that for a
> non-clustered VG previously.
Updates have been made to the LVM agent to allow exclusive activation without
clvmd.
http://www.davidvossel.com/wiki/index.php?title=HA_LVM
-- Vossel
>
> > >> You could argue that it never should have worked. Anyway: If you want
> > >> to activate a VG on exactly one node you should not need cLVM; only if
> > >> you man to activate the VG on multiple nodes (as for a cluster file
> > >> system)...
> > >
> > > You don't need cLVM to activate a VG on exactly one node. Correct. And
> > > you don't. The cluster stack will never activate a resource twice.
> >
> > Occasionally two safty lines are better than one. We HAD filesystem
> > corruptions due to the cluster doing things it shouldn't do.
>
> And that's perfectly fine. All you need to do to activate this is
> "vgchange -c y" on the specific volume group, and the exclusive=true
> flag will work just fine.
>
> > > If you don't want that to happen, exclusive=true is not what you want to
> > > set.
> > That makes sense, but what I don't like is that I have to mess with local
> > lvm.conf files...
>
> You don't. Just drop exclusive=true, or set the clustered flag on the
> VG.
>
> You only have to change anything in the lvm.conf if you want to use tags
> for exclusivity protection (I defer to the LVM RA help for how to use
> that, I've never tried it).
>
>
> Regards,
> Lars
>
> --
> Architect Storage/HA
> SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer,
> HRB 21284 (AG Nürnberg)
> "Experience is the name everyone gives to their mistakes." -- Oscar Wilde
>
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