Re: [Xen-users] SAN / LVM backend and partitions

["Christopher G. Stach II" <cgs@xxxxxxxxx>]

Reinhard Brandstaedter wrote:
> Unfortunately RedHat EL5 (which we use) doesn't include support for
> OCFS2, I think. So we are just testing GFS2 too.

It's not difficult to add, but that's a little off topic.

> But I thought I can setup this without any cluster FS at all. Of course
> a Clustered LVM comes in very handy.
> For the NFS argument I only see the problem that a NFS server would be a
> single point of failure which I want to avoid (especially because I have
> SAN storage)
> As it's recommended to use LVM devices for DomU disks I don't see why I
> should "risk" using a cluster FS at all.
> CLVM would be the easy way to avoid manual LVM management on the Dom0s
> but it's the only thing I would need from the Cluster Suite.

CLVM is just LVM with the DLM and everything that goes with it.  It
could be as flaky as running GFS without CLVM if you wanted it to be. :)

> What do you suggest for the storage of DomUs then? File backend on a
> cluster FS or LVM backend with maybe CLVM?

You can use LVM across the cluster if you want.  Just don't change any
of the LVs, VGs, or PVs while it's in use. :)

Don't use file backed if you can help it.

-- 
Christopher G. Stach II


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users