Hm, was will mir die Datei /proc/mdstat denn damit sagen?
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid5 sda5[0] sdd5[3] sdc5[2] sdb5[1]
8776594944 blocks super 1.2 level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
md1 : active raid1 sda2[0]...