Users guide

Intel® RAID Software User Guide 332
Glossary
This chapter provides a glossary for terms used in this document.
A
Absolute state of charge Predicted remaining battery capacity expressed as a percentage of
Design Capacity. Note that the Absolute State of Charge operation
can return values greater than 100 percent.
Access policy A virtual drive property indicating what kind of access is allowed for
a particular virtual drive. The possible values are Read/Write, Read
Only, or Blocked.
Alarm enabled A controller property that indicates whether the controller’s on-board
alarm is enabled.
Alarm present A controller property that indicates whether the controller has an
on-board alarm. If present and enabled, the alarm is sounded for
certain error conditions.
Array See Drive group.
Auto learn mode The controller performs the learn cycle automatically in this mode.
This mode offers the following options:
• BBU Auto Learn: Firmware tracks the time since the last learn
cycle and performs a learn cycle when due.
• BBU Auto Learn Disabled: Firmware does not monitor or initiate
a learn cycle. You can schedule learn cycles manually.
• BBU Auto Learn Warn: Firmware warns about a pending learn
cycle. You can initiate a learn cycle manually. After the learn
cycle is complete, the firmware resets the counter and warns
you when the next learn cycle time is reached.
Auto learn period Time between learn cycles. A learn cycle is a battery calibration
operation performed periodically by the controller to determine the
condition of the battery.
Average time to empty One-minute rolling average of the predicted remaining battery life.
Average time to full Predicted time to charge the battery to a fully charged state based
on the one-minute rolling average of the charge current.
B
Battery module version Current revision of the battery pack module.
Battery replacement Warning issued by firmware that the battery can no longer support
the required data retention time.
Battery retention time Time, in hours, that the battery can maintain the contents of the
cache memory.