These commands look a bit dangerous: # dmsetup remove_all # dmraid --activate y --format isw Is that y a "yes" flag !? eg answer Yes on any question.

These commands look a bit dangerous: # dmsetup remove_all # dmraid --activate y --format isw Is that y a "yes" flag !? eg answer Yes on any question. In my experience, working with anything beside simple mirrors in a RAID config will eventually result in loss of data, and that most data loss is because of human failure rather then disk failure.