mdmonitor service failing with "Can't open PID file"

Solution Unverified - Updated -

Issue

  • The mdmonitor service is failing with "Can't open PID file":

    Apr 26 17:33:27 host systemd[1]: mdmonitor.service: Can't open PID file /var/run/mdadm/mdadm.pid (yet?) after start: No such file or directory
Apr 26 17:33:27 host systemd[1]: mdmonitor.service: Failed with result 'protocol'.

Environment

  • Red Hat Enterprise Linux 8

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