Avago Technologies MegaRAID Fast Path Software - Manual (Page 159)

LSI Corporation Confidential | July 2011 Page 159
MegaRAID SAS Software User Guide Chapter 4: WebBIOS Configuration Utility | Viewing and Changing Device Properties
The lower right corner of the dialog ( Figure 105 ) contains the auto learn options. A
learning cycle is a battery calibration operation performed by the controller
periodically to determine the condition of the battery. You can change the learn
delay interval (the length of time between automatic learning cycles) and the auto
learn mode.
NOTE: LSI recommends leaving the learn delay interval and the auto learn mode at
their default settings.
NOTE: After selecting Disabled (in the Auto Learn Mode), if you select Enabled, the
controller firmware resets the battery module properties to initiate an immediate
battery learn cycle. However, in the Scheduled Learn cycle field, the value None is
displayed. The Scheduled Learn cycle field is not updated until the battery relearn is
completed. Once the relearning cycle is completed, the value in the Scheduled Learn
cycle field displays the new date and time of the next battery learning cycle.
4.8.5.1 Setting the Learn Delay
Interval
The learn delay interval is the length of time between automatic learning cycles.
Perform the following steps to change the interval:
a. Open the drop-down list in the Auto Learn Mode field.
b. Select the learn mode as Enabled (the default).
Use this setting so that the controller performs the learning cycle automatically.
c. Change the number of hours in the Delay Scheduled learn cycle by field.
You can delay the start of the learn cycles for up to 168 hours (7 days).
d. Click Go to set the interval.
4.8.5.2 Setting the Auto Learn
Mode
You can start battery learning cycles manually or automatically. The Auto Learn
modes are:
 BBU Auto Learn: The firmware tracks the time since the last learning cycle and
performs a learn cycle when due.
 BBU Auto Learn Disabled: The firmware does not monitor or initiate a learning cycle.
You can schedule learning cycles manually.
NOTE: After selecting Disabled (in the Auto Learn Mode), if you select Enabled, the
controller firmware resets the battery module properties to initiate an immediate
battery learn cycle. However, in the Scheduled Learn cycle field, the value None is
displayed. The Scheduled Learn cycle field will not be updated until the battery relearn
is completed. Once the relearning cycle is completed, the value in the Scheduled Learn
cycle field will display the new date and time of the next battery learning cycle.
 BBU Auto Learn Warn: The firmware warns about a pending learning cycle. You can
initiate a learning cycle manually. After the learning cycle is complete, the firmware
resets the counter and warns you when the next learning cycle time is reached.