On 01/05/2011 09:14 AM, Lentes, Bernd wrote: > Hi, > > I'm planning to create a HA-Cluster with two nodes: The nodes are running > SLES 11 SP1, the services i want to make ha are running on several VM's (one > VM for one service) on these nodes. My idea is to synchronise the storage > with DRBD and not to use a SAN. It is possible to install a KVM VM into a > plain logical volume (the lv has no filesystem and is not mounted). > Is it possible to synchronize such logical volumes (no filesystem and not > mounted) with DRBD ? What do you think about my setup ? > > Thanks for any answer. > > Bernd
With the preface that my experience is in RHEL and Xen: Yes, you can use DRBD + CLVMD for hosting the VMs in dedicated LVs just fine. Be sure that DRBD is managed in Pacemaker though, so that split-brain conditions cause a stonith (fence) call. Failing that, setup a fence device inside of DRBD directly. Also, be aware that you should run the VMs only on nodes that are UpToDate. If the node's DRBD resource is still sync'ing and the UpToDate disk goes away, the Syncing resource will go Secondary and your VMs will crash. You can always live-migrate the VMs back once the sync is complete. HTH -- Digimer E-Mail: [email protected] AN!Whitepapers: http://alteeve.com Node Assassin: http://nodeassassin.org _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
