font
A family of characters of a specific size and style.
footprint
The physical space that is occupied when the product is installed. The footprint is often considered by
the customer when floor space is planned.
format
The arrangement or layout of data on a data medium.
The density that is used to write at the beginning of tape.
formatter
Part of a magnetic tape subsystem that completes data conversion, speed matching, encoding, first
level error recovery, and provides interfaces to one or more tape drives.
FP
File protect.
frayed
Damaged, as if by a sharp or abrasive surface or substance.
FRU
Field replaceable unit.
FSC
Fault symptom code.
FSI
Fault symptom index.
FTP
File transfer protocol.
full-duplex
Communications mode that allows transmission or reception of data blocks at the same time.
functional microcode
Microcode that is resident in the machine during normal customer operation.
G
g
gram.
Gb
Gigabit.
Often associated with data transmission speed, as in Gbps.
GB
Gigabyte.
Often associated with storage capacity.
Gbps
Gigabit per second.
Often associated with communication transmission speed.
giga
Prefix for 'billion' in American system (10
9
).
gigabit (Gb)
One billion bits.
gigabyte (GB)
One billion bytes.
H
half-duplex
Communications mode that allows transmission or reception of data blocks but not at the same time.
306 IBM 3592 TS1140, TS1150, TS1155, and TS1160 Tape Drives: Maintenance Information