[DRBD-user] DRBD and KVM for a HA-Cluster ?

J. Ryan Earl oss at jryanearl.us
Thu Jan 6 03:40:11 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On Wed, Jan 5, 2011 at 12:45 PM, Digimer <linux at alteeve.com> wrote:

> On 01/05/2011 09:14 AM, Lentes, Bernd wrote:
> > Is it possible to synchronize such logical volumes (no filesystem and not
> mounted) with DRBD ? What do you think about my setup ?
> <snip>
>  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.

You'll want to run DRBD in active-active (aka dual primary) mode for Live
Migration capability.

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