On freshly installed openSUSE-Factory I have noticed that root is recieving lot
of emails from /etc/cron.daily/mdadm / mdchechk:
Subject: Cron <root@daredevil> source /etc/sysconfig/mdadm; [ -n
"$MDADM_CHECK_DURATION" -a -x /usr/share/mdadm/mdcheck ] &&
/usr/share/mdadm/mdcheck --continue --duration "$MDADM_CHECK_DURATION"
...
X-Cron-Env: <USER=root>
Message-Id: <20141029000001.9EB45207@linux-e66k.site>
Date: Wed, 29 Oct 2014 01:00:01 +0100 (CET)

ls: cannot access /dev/md?*: No such file or directory


Which however does not make much sense since there is and never was any mdraid
used at all - perhaps mdcheck should not consider missing /dev/md* as error?