08.12.2015 11:13, Lentes, Bernd wrote:
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
two).
How do I transfer them to a naked lv ?
qemu-img (or possibly just dd because both formats are raw)
Bernd
Helmholtz Zentrum Muenchen
Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
Ingolstaedter Landstr. 1
85764 Neuherberg
www.helmholtz-muenchen.de
Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe
Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen
Registergericht: Amtsgericht Muenchen HRB 6466
USt-IdNr: DE 129521671
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