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Configuration: About Your Storage Array 81
Battery Settings
A smart battery backup unit (BBU) can perform a learn cycle. The smart BBU
module includes the battery, a battery gas gauge, and a battery charger. The
learn cycle calibrates the smart battery gas gauge so that it provides a
measurement of the charge of the battery module. A learn cycle can only start
when the battery is fully charged.
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.
To change the battery settings perform these steps:
1
In the AMW, select
Storage Array
Change
Battery Settings
.
The
Battery Settings
dialog is displayed.
2
In
Battery location
, select a battery.
3
Check these details about the battery:
• Battery status
• Battery age
• Days until replacement
For more information, see the PowerVault Modular Disk Storage Manager
online help topics.
book.book Page 81 Tuesday, September 27, 2011 3:25 PM