Edit File: mdmonitor.service
[Unit] Description=Software RAID monitoring and management After=syslog.target ConditionPathExists=/etc/mdadm.conf [Service] Type=forking PIDFile=/var/run/mdadm/mdadm.pid Environment= MDADM_MONITOR_ARGS=--scan EnvironmentFile=-/etc/sysconfig/mdmonitor ExecStart=/sbin/mdadm --monitor $MDADM_MONITOR_ARGS -f --pid-file=/var/run/mdadm/mdadm.pid [Install] WantedBy=multi-user.target