Edit: /etc/default/mdadm (854B)
# mdadm Debian configuration
#
# You can run 'dpkg-reconfigure mdadm' to modify the values in this file, if
# you want. You can also change the values here and changes will be preserved.
# Do note that only the values are preserved; the rest of the file is
# rewritten.
#
# AUTOCHECK:
# should mdadm run periodic redundancy checks over your arrays? See
# /etc/cron.d/mdadm.
AUTOCHECK=true
# AUTOSCAN:
# should mdadm check once a day for degraded arrays? See
# /lib/systemd/system/mdmonitor-oneshot.service
AUTOSCAN=true
# START_DAEMON:
# should mdadm start the MD monitoring daemon during boot?
START_DAEMON=true
# DAEMON_OPTIONS:
# additional options to pass to the daemon.
DAEMON_OPTIONS="--syslog"
# VERBOSE:
# if this variable is set to true, mdadm will be a little more verbose e.g.
# when creating the initramfs.
VERBOSE=false