User Manual

Using the RAID GUI
2-71
3. Click Apply to confirm the current settings.
2.9.5 Miscellaneous
Low Battery
Threshold
(seconds)
120 / 300 / 480 / 660 / 840 / 1020 / 1200 / 1380
This option notifies the user that the UPS battery is
low, with the specified remaining seconds.
Change Restart
Percentage
0 / 15 / 30 / 45 / 60 / 75 / 90
After the AC power returns, the UPS does not
power on until the battery charge reaches the
specified capacity.
Note
1. The values from each drop-down menu may be different according
to the UPS connected.
2. Currently the controller only support and communicate with
Smart-UPS function APC (American Power Conversion Corp.) UPS.
Please check detail http://www.apc.com/.
Beeper Control: On (default) / Off / Mute
This option controls the controller’s beeper.
On: The beeper sounds during exceptional conditions or when
background tasks make progress. By default, the beeper is on.
Off: The beeper is quiet all the time.
Mute: This temporarily mutes the beeper, but it beeps again if
exceptional conditions still exist.
Auto Write-Through Cache
This option enables or disables the auto write-through function for the
following four types of events.
1. Controller Failure
2. Battery Backup Module Failure
3. Power Supply Unit Failure
4. Fan Failure
5. UPS Failure
When events are detected with a specified type, both the cache on
the controller and disk will be automatically set as write-through.
After the failure or warning condition is removed, the cache settings
will be restored to your original configuration.
Path Failover Alert Delay (min): 5 (default)