HP Surestore Disk Array 12h and FC60 - Manual (Page 441)

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GLOSSARY
adapter
A printed circuit assembly that transmits user data (I/Os) between the host system’s
internal bus and the external Fibre Channel link and vice versa. Also called an I/O
adapter, FC adapter, or host bus adapter (HBA).
ArrayID
The value used to identify a disk array when using Array Manager 60. The ArrayID can
be either the disk array S/N, or an alias assigned to the disk array.
auto failover
The process of transferring the I/O data path from a failed controller to the remaining
operational controller in the disk array. Auto failover allows uninterrupted access to all
user data with no downtime. The failed controller can be removed, then replaced by a
new array controller, without any downtime, loss of data, or interruption to the host
computer system.
battery backup unit (BBU)
A hardware component providing up to 5 days (120 Hours) of backup power to the disk
array should power be lost. The BBU power maintains the integrity of the contents of
write cache, which is written to the disk media when power to the disk array is
restored. A functioning BBU is required to enable disk array cache.
BCC module
The BCC (bus controller card) module manages the disk modules in the disk systems.
Each disk system contains two BCC controllers.