HP 6400/8400 - Page 136

ESI Enclosure Services Interface. The SCSI-3 engineering services interface implementation developed
for storage products. A bus that connects the EMU to the disk drives.
ESP Enclosure Services Processor. An EMU that implements an enclosure’s services process.
event Any significant change in the state of the Enterprise storage system hardware or software
component reported by the controller to HP P6000 Command View.
See also controller event, drive enclosure event, management agent event, and termination event.
Event Information
Packet
See EIP.
Event Number A sequential number assigned to each Software Code Identification (SWCID) event. It is a decimal
number in the range 0-255.
Evt No. See Event Number.
exabyte A unit of storage capacity that is the equivalent of 2
60
bytes or 1,152,921,504,606,846,976
bytes. One exabyte is equivalent to 1,024 petabytes.
F
fabric A network of Fibre Channel switches or hubs and other devices.
fabric port A port which is capable of supporting an attached arbitrated loop. This port on a loop will have
the AL_PA hexadecimal address 00 (loop ID 7E), giving the fabric the highest priority access to
the loop. A loop port is the gateway to the fabric for the node ports on a loop.
failover See array controller failover or DR group failover.
failsafe A safe state that devices automatically enter after a malfunction. Failsafe DR groups stop accepting
host input and stop logging write history if a group member becomes unavailable.
fan The variable speed airflow device that cools an enclosure or component by forcing ambient air
into an enclosure or component and forcing heated air out the other side.
FATA Fibre Attached Technology Adapted disk drive.
Fault Management
Code
See FMC.
FC HBA Fibre Channel Host Bus Adapter.
See also FCA.
FCA Fibre Channel Adapter.
See also FC HBA.
FCC Federal Communications Commission. The federal agency responsible for establishing standards
and approving electronic devices within the United States.
FCP Fibre Channel Protocol.
fiber The optical media used to implement Fibre Channel.
fiber optic cable A transmission medium designed to transmit digital signals in the form of pulses of light. Fiber
optic cable is noted for its properties of electrical isolation and resistance to electrostatic
contamination.
fiber optics The technology where light is transmitted through glass or plastic (optical) threads (fibers) for data
communication or signaling purposes.
Fibre Channel A data transfer architecture designed for mass storage devices and other peripheral devices that
require high bandwidth.
Fibre Channel
adapter
See FCA.
Fibre Channel
drive enclosure
An enclosure that provides 12-port central interconnect for Fibre Channel arbitrated loops following
the ANSI Fibre Channel disk enclosure standard.
Fibre Channel Loop Fibre Channel Arbitrated Loop. The American National Standards Institute’s (ANSI) document
that specifies arbitrated loop topology operation.
field replaceable
unit
See FRU.
136 Glossary