[root@localhost proc]# mdadm --detail --scan
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=03d99902:461fd9bf:44bcd436:ab683b5c
   devices=/dev/sda3,/dev/sdb3
ARRAY /dev/md2 level=raid1 num-devices=2 UUID=ee0a7732:cf7cf6d8:0b46262e:9b19167c
   devices=/dev/sda5,/dev/sdb5
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=a956fb6b:f7ad5608:22ed2145:b71018e3
   devices=/dev/sda6,/dev/sdb6
[root@localhost proc]# cat /etc/mdadm.conf

# mdadm.conf written out by anaconda
DEVICE partitions
MAILADDR root
ARRAY /dev/md1 super-minor=1
ARRAY /dev/md2 super-minor=2
[root@localhost proc]#