Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 219)

Scheduling page
www.lsi.com/channel/products 207
Self-test Schedules
Unlike scheduling of rebuilds and verifies, scheduling of self-tests is always
followed. To disable self-tests you either remove all schedule times, or
uncheck the tests listed in the Tasks column.
Check SMART Thresholds. This test checks to see whether SMART
thresholds have been exceeded.
The SMART thresholds indicate when a SATA or SAS drive is likely to fail,
based on the number of errors that have been recorded through SMART (Self-
Monitoring, Analysis and Reporting Technology).
If any of the disk drives have detected a “threshold exceeded” condition, then
an AEN is logged to the 3DM2 Alarms page. Moreover, if anything unusual is
found during any self-test, it will be logged as an Alarm.
Note: Only the checked tasks will be run during the scheduled times. If none of the
tasks are checked, self-tests will never run, even if you have scheduled time slots
set.