hi nick
Is anyone successfully using KVM with heartbeat and live migration? What
storage backend works?
i'm also thinking about using kvm and heartbeat togheter on a 2node
cluster.
Stack would be:
- drbd
- ocfs2
- libvirt (virsh)
- kvm with file backed storage
so far i experimented with an virsh ocf resouce agent. but only to start
and stop. no migration.
gotchas so far:
- ocfs2: fencing itself (two-node cluster problem... or my configuration
error)
- ocfs2: not integrated with heartbeat (i'm using debian, read about
rewrite of ocfs2 on ml to allow userspace clustering - april 2008)
- kvm: virtio devices (aka disk/network performance) are new (kernel >=
2.6.25)
- kvm: migration with virtio devices doesn't work yet
- debian: etch's libvirt/kvm somewhat too old (needs backporting)
i would say: not an out-of-the box solution.
- Thomas
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