Hi well, I may be wrong but 2 things i have expirienced: 1. I've heard (also on this list) that there are problems with the continious operating if a disk fails in an ataraid raid1 array.... 2. I am able to access the disks of the array one by one to, even if they are in an array. It is shurely a bad idea writing to the indivial disks, but allowing access for smartd or other simillar software should not be a problem (I think)... I hope I could help mfg Albert Dengg