I understand it's a problem with ARECA but definitly after this problem, i want that DSS stop all access of my volumes for iSCSI or NAS.

When this problem occurs, DSS stop the volume on S001 so the VM stored on it just stop and no data were lost.
Why it can do the same for all the units ?

And for info i have latest firmware ARECA.
And for OpenE when i tried to install latest V6, it just hang Ã* 72%...

Anyway i have to fix theses problems but i really consider this issue when looking for my new SAN / NAS / ESX 5 migration.