HP Array Controller HSG V8.7 Software - Manual (Page 532)

G–6 HSG80 User’s Guide
EMU Environmental monitoring unit. A unit that provides increased
protection against catastrophic failures. Some subsystem enclosures
include an EMU which works with the controller to detect conditions
such as failed power supplies, failed blowers, elevated temperatures,
and external air sense faults. The EMU also controls certain cabinet
hardware including DOC chips, alarms, and fan speeds.
ESD Electrostatic discharge. The discharge of potentially harmful static
electrical voltage as a result of improper grounding.
extended subsystem A subsystem in which two cabinets are connected to the primary
cabinet.
external cache battery See ECB.
F_Port A port in a fabric where an N_Port or NL_Port may attach.
fabric A group of interconnections between ports that includes a fabric element.
failedset A group of failed mirrorset or RAIDset devices automatically created
by the controller.
failover The process that takes place when one controller in a dual-redundant
configuration assumes the workload of a failed companion controller.
Failover continues until the failed controller is repaired or replaced.
FC–AL The Fibre Channel Arbitrated Loop standard.
FC–ATM ATM AAL5 over Fibre Channel
FC–FG Fibre Channel Fabric Generic Requirements
FG–FP Fibre Channel Framing Protocol (HIPPI on FC)
FC-GS-1 Fibre Channel Generic Services-1
FC–GS-2 Fibre Channel Generic Services-2
FC–IG Fibre Channel Implementation Guide
FC–LE Fibre Channel Link Encapsulation (ISO 8802.2)