HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Glossary
284 HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
FD SCSI
A fast, narrow, differential SCSI bus with an 8-bit data transfer rate of 10 MB/s.
See also FWD SCSI and SCSI.
FDDI
Fiber distributed data interface. An ANSI standard for 100 megabaud transmission over
fiber optic cable.
fiber
A fiber or optical strand. Spelled fibre in Fibre Channel.
fiber optic cable
A transmission medium designed to transmit digital signals in the form of pulses of light.
Fiber optic cables are noted for properties of electrical isolation and resistance to
electrostatic contamination.
FL_Port
A port in a fabric where an N_Port or NL_Port may be connected.
flush
The act of writing dirty data from cache to a storage media.
See also dirty data.
FMU
Fault Management Utility. A utility that is run to provide fault or error reporting
information.
forced errors
A data bit indicating that a corresponding logical data block contains unrecoverable data.
frame
An invisible unit used to transfer information in Fibre Channel.
FRU
Field replaceable unit. A hardware component that can be replaced at the customer location
by HP-authorized service providers.
FRUTIL
Field replacement utility. A utility used to replace field replaceable components, such as
controllers, cache modules, PVAs, and ECBs.
full duplex
A communications method in which data can be transmitted and received at the same time.
full duplex
A communications system in which there is a capability for 2-way transmission and
acceptance between two sites at the same time.