[ClusterLabs] design of a two-node cluster

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Tue Dec 8 03:13:48 EST 2015

Digimer wrote:

> >>> Should I install all vm's in one partition or every vm in a seperate
> >>> partition ? The advantage of one vm per partition is that I don't
> >>> need a cluster fs, right ?
> >>
> >> I would put each VM on a dedicated LV and not have an FS between
> the
> >> VM and the host. The question then becomes; What is the PV? I use
> >> clustered LVM to make sure all nodes are in sync, LVM-wise.
> >
> > Is this the setup you are running (without fs) ?
> Yes, we use DRBD to replicate the storage and use the /dev/drbdX
> device as the clustered LVM PV. We have one VG for the space (could
> add a new DRBD resource later if needed...) and then create a dedicated
> LV per VM.
> We have, as I mentioned, one small LV formatted with gfs2 where we
> store the VM's XML files (so that any change made to a VM is
> immediately available to all nodes.

How can i migrate my current vm's ? They are stored in raw files (one or
How do I transfer them to a naked lv ?


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