[libvirt-users] RAID1 over IP?

[Emmanuel Noobadmin]

On 7/19/11, David Ehle <ehle at agni.phys.iit.edu> wrote:
> KVM/libvirt makes moving running VM's from one host to another a no
> brainer, but I'm trying to figure out the right way to be able to take a
> the storage backend for maintenance without disrupting the VMs.
>
> Right now I'm thinking something like KVM + libvirt + heartbeat/corosync +
> pacemaker + DBRM on Ubuntu 10.04 with 3 or 4 nodes - 2 hosts, 2 storage,
> or 1 host, 1 host + storage, 1 storage.

Personally, I had been planning to do it with mdadm multi-path & RAID
1 over iSCSI. Seems to be a more straightforward solution than using a
full HA setup if the purpose is to ensure storage remains available
when a node is down (for maintenance or otherwise).