EMI Electromagnetic Interference. The impairment of a signal by an electromagnetic
disturbance.
enclosure A unit used to hold various storage system devices such as disk drives, controllers,
power supplies, I/O modules, or fans.
Enterprise Virtual
Array
The Enterprise Virtual Array is a product that consists of one or more storage
systems. Each storage system consists of a pair of HSV controllers and the disk
drives they manage. A storage system within the Enterprise Virtual Array can be
formally referred to as an Enterprise storage system, or generically referred to
as the storage system.
Enterprise Virtual
Array rack
A unit that holds controller enclosures, disk drive enclosures, power distribution
supplies, and enclosure address buses that, combined, comprise an Enterprise
storage system solution. Also called the Enterprise storage system rack.
See also rack.
ESD Electrostatic Discharge. The emission of a potentially harmful static electric voltage
as a result of improper grounding.
event Any significant change in the state of the Enterprise storage system hardware or
software component reported by the controller to HP Command View EVA.
See also controller event.
Event Information
Packet
See EIP.
Event Number See Evt No.
Evt No. Event Number. A sequential number assigned to each Software Code
Identification (SWCID) event. It is a decimal number in the range 0-255.
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.
fabric A Fibre Channel fabric or two or more interconnected Fibre Channels allowing
data transmission.
failover The process that takes place when one controller assumes the workload of a
failed companion controller. Failover continues until the failed controller is
operational.
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. An interchangeable term for Fibre Channel
adapter.
See also FCA.
HP StorageWorks 4400 Enterprise Virtual Array user guide 113
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