[Pacemaker] Do I need a resource for a clustered LVM volume group or not?

Florian Haas florian.haas at linbit.com
Wed Dec 8 16:11:59 EST 2010

On 12/08/2010 09:34 PM, Mike Diehn wrote:
>     > I want
>     > to use OCFS2 on an LVM2 logical volume.
>     Why why why???
> Load balancing cluster.

And that DAV locking thingy or whatever Subversion uses is actually
cluster aware?

>     > The PV for the volume group is
>     > a SAN LAN connected to the nodes with fiber channel.
>     >
>     > Some examples I found showed configuring a resource with
>     > ocf:heartbeat:LVM, presumably to active the volume group?  Do I need
>     > that?  I ask because....
>     >
>     > Once the cluster gets dlm, clvm and o2cb running on a node, I can
>     always
>     > see the volume group on that node with vgscan.  Before dlm and clvm is
>     > running, I can't - which makes perfect sense.
>     Are you trying to build simple failover, and you have no requirements
>     for load balancing at all?
> We're load balancing.
>     Make sure you configure STONITH so you can
>     arbitrate access to shared storage.
> Yep, already done.
> So, do you know if we'll need a resource configured to do something with
> the clustered volume group?

Yes, use a clone set of an ocf:heartbeat:LVM primitive. Obviously, you
also need to clone the dlm, clvm, and o2cb resources.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 262 bytes
Desc: OpenPGP digital signature
URL: <https://lists.clusterlabs.org/pipermail/pacemaker/attachments/20101208/da19fe1f/attachment-0003.sig>

More information about the Pacemaker mailing list