[Pacemaker] KVM VM's on internal DRBD volumes

[Pieter Baele]

It's a while since I've done some pacemaker testing, but yesterday
I've done a setup of KVM guests on top off DRBD volumes
This without using shared storage or cluster file systems. (2-node cluster)

I like this setup because it allows applications that can't be
clustered easily to run in an VM.
Live migration is not necessary, but fast recovery is necessary.

The problem: some guests don't boot after a "migrate" or "standby".
Also cutting the connection on one of the nodes
doesn't work that wel for the moment.
It's no problem to recover these guests manually, but this way it
doesn't behave like a cluster


Maybe I've to tweak some parameters/ordering/colocation/.... ? Or do I
really need shared storage? Or....