NEC EXPRESS5800 User Manual page 26

<Description of major items>
Adaptive Writeback
Cache
Battery tab
The Battery tab indicates the current information on the battery if connected.
<Description of major items>
Operation Status
Estimated Hold Time
Battery Temperature
Without battery connection, message "No Battery detected" appears.
Adaptive Writeback Cache controls the write cache mode for all of the logical
drives per controller base.
Checked:
When the following conditions match, the write policy of all logical drives
under the controller sets to "Write Through", regardless of the write policy
setting for individual logical drive.
- Operational Status: status EXCEPT FOR "Fully Charged"
- Estimated Hold Time: less than 70 hours
- Battery Temperature: Above 60 centigrade.
Unchecked:
The write cache mode of individual logical drive depends on the setting of
each logical drive.
For details of the settings of battery, see "Battery" section described below.
For details of the settings of write cache mode for each logical drive, see
"3.5.9 Logical Drive."
Fully Charged: The battery is fully charged.
Charging: The battery is being charged.
Indicates the estimated hold time of the battery.
Indicates the temperature of the battery.
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