Enable monitoring of MD (software RAID) devices

After you have created the RAID (via YAST):

#insserv -d mdadmd

to have mdadm run as a daemon in the background in the deafult runlevels (usually 3 and 5) monitoring your devices. Or you can run it manually using

#mdadm --monitor --scan --daemonise > /var/run/mdadm

this also writes the pid to /var/run/mdadm file.

Also, check it by running:

#chkconfig -l mdadmd
mdadmd                    0:off  1:off  2:off  3:on   4:off  5:on   6:off