[gpfsug-discuss] Reexporting GPFS via NFS on VM host

[Simon Thompson (Research Computing - IT Services)]

>I've set up a couple of VM hosts to export some of its GPFS filesystem
>via NFS to machines on that VM host[1,2].

Provided all your sockets no the VM host are licensed.

>Is live migration of VMs likely to work?
>
>Live migration isn't a hard requirement, but if it will work, it could
>make our life easier.

Live migration using a GPFS file-system on the hypervisor node should work
(subject to the usual caveats of live migration).

Whether live migration and your VM instances would still be able to NFS
mount (assuming loopback address?) if they moved to a different
hypervisor, pass, you might get weird NFS locks. And if they are still
mounting from the original VM host, then you are not doing what the FAQ
says you can do.

Simon