Roger, et al -- ...and then Roger Heflin said... % % For re-add to work the array must have a bitmap, so that mdadm knows % what parts of the disk need updating. [snip] Ahhhhh... Thanks! I've wondered about an internal bitmap vs not. I also wonder how big the bitmap is and where else I might stick it ... HANW :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt