"Also sprach Stephan von Krawczynski:" > Is there some known problem with devices of that size (>128GB) ? I don't know of any and cannot think of a reason why that should be a difficulty. What enbd? Version, I mean. Try running enbd-test -s some_numberG /dev/nda, then /dev/ndb, then /dev/md0, etc. (this test is destructive - it writes then reads). Peter