Hi,

Thanks for reply.

I just want to clarify some details about my problem:

I'm talking about vg_loss(SAN_down/vscsi_down/npiv_down) only on single node - other nodes see SAN disks with no problem.
vscsi and npiv mixing is only for test purposes.
The problem is not error but hung release_vg_fs event script and to be specific it's "umount -f .." command which hangs - I see that using ps during the event. I tried removing all app processes using fuser in my app server script - it doesn't help - umount still hangs. The same problem is evident even without cluster, just using manual administration commands: all vg devices gone - umount will never return. My problem could be simplified as: how do I umount fs then it's vg and devices are gone?

Only solution I see now is node shutdown on some event(I did not decide which one yet), shutdown never finishes because of hung umounts but node releases resource group - and that is enough. If someone could suggest smarter solution please do.

On the other hand it's standard situation and people who test their cluster against "SAN down on single node" should face the same situation.

Vilius M.