--- smartmontools/smartd.conf

+++ smartmontools/smartd.conf

@@ -20,7 +20,12 @@

 # Directives listed below, which will be applied to all devices that

 # are found.  Most users should comment out DEVICESCAN and explicitly

 # list the devices that they wish to monitor.

-DEVICESCAN

+#DEVICESCAN

+

+# Alternative setting to check the SMART health status of disks,

+# send warning emails to root, check devices unless they are in SLEEP

+# or STANDBY mode, with maximum number of skipped checks set to 12 hours.

+DEVICESCAN -H -m root -n standby,24,q

 # Alternative setting to ignore temperature and power-on hours reports

 # in syslog.