after migrating data to a new SAN (via Mirroring, see another thread) I do
not need the old SAN. All data are migrated, all systems are running. I down
the cluster, build a new SBD-Partion and start the custer again. Alle things
are fine.

Then I want to remove the old SAN form the zoneing. But after a restart of
the nodes there are only two pools accessable. For the other pools I get the
error message: "EVMS ERROR building region <POOL> Missing member object 0"
A reenable the zoneing makes the pool accessabel again.

Where I have to look for the reason of this behavior?