IBM ServeRAID M5025, User Manual

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6-6 Using the Intelligent Battery Backup Unit
You can delay the start of the learn cycles for up to 168 hours
(7 days).
4. Click Go .
6.1.1.2 Setting the Learn Mode
You can start battery learning cycles manually or automatically. The Auto
Learn modes are:
– BBU Auto Learn: Firmware tracks the time since the last learning
cycle and performs a learn cycle when due.
– BBU Auto Learn Disabled: Firmware does not monitor or initiate
a learning cycle. You can schedule learning cycles manually.
– BBU Auto Learn Warn: Firmware warns about a pending
learning cycle. You can initiate a learning cycle manually. After
the learning cycle is complete, firmware resets the counter and
warns you when the next learning cycle time is reached.
Perform the following steps to choose an auto learn mode:
1. Open the drop-down menu in the Auto Learn Mode field.
2. Select an auto learn mode.
3. Click Go to set the auto learn mode.
Note: For the best system performance, type
30
in the Auto
Learn Period (days) field to set the interval between cycles
to 30 days.
Note: When you replace the iBBU, the charge cycle counter is
reset automatically.
6.1.2 Monitoring the iBBU with the MegaCLI Utility
You can use the MegaCLI commands in this section to monitor the iBBU
and to select the settings for BBU-related options.
6.1.2.1 Display BBU Information
Use the command in Table 6.1 to display complete information about the
BBU for the selected controller(s).