Dell PowerVault MD3820f - Manual (Page 59)

The learn cycle completes the following operations:
• Discharges the battery to a predetermined threshold
• Charges the battery back to full capacity
A learn cycle starts automatically when you install a new battery module. Learn cycles for batteries in
both RAID controller modules in a duplex system occur simultaneously.
Learn cycles are scheduled to start automatically at regular intervals, at the same time and on the same
day of the week. The interval between cycles is described in weeks.
Use the following guidelines to adjust the interval:
• You can use the default interval.
• You can run a learn cycle at any time.
• You can set the learn cycle earlier than the currently scheduled time.
• You cannot set the learn cycle to start more than seven days later than the currently scheduled time.
Changing The Battery Settings
To change the battery settings:
1. In the AMW, from the menu bar, select Hardware → Enclosure → Change → Battery Settings.
The Battery Settings dialog is displayed.
2. You can change these details about the battery learn cycle:
– Schedule day
– Schedule time
For more information, see the online help topics.
Setting The Storage Array RAID Controller Module Clocks
You can use the Synchronize Clocks option to synchronize the storage array RAID controller module
clocks with the storage management station. This option makes sure that the event timestamps written
by the RAID controller modules to the Event Log match the event timestamps written to host log files.
The RAID controller modules remain available during synchronization.
To synchronize the RAID controller module clocks with the storage management station:
1. In the AMW, on the menu bar, select Hardware → RAID Controller Module → Synchronize Clocks.
2. If a password is set, in the Enter Password dialog, type the current password for the storage array,
and click Synchronize.
The RAID controller module clocks are synchronized with the management station.
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