T
tape cartridge.
A container holding magnetic
tape that can be processed without separating it
from the container.
tape drive.
A device that is used for moving
magnetic tape and includes the mechanisms for
writing and reading data to and from the tape.
tape synchronous mode.
The tape synchronous
mode transfers records whose length is greater
than the limits defined for buffered records. The
device operates in the tape synchronous mode, if
the format being processed is supported.
tape unit.
A device that contains tape drives
and their associated power supplies and
electronics.
target.
A SCSI device that performs an
operation requested by the initiator. In many
cases, a target can also be an initiator.
target routine.
A target routine is an I/O
process directed to a target, and not to a logical
unit.
terminator.
A part used to end a channel or
connection on a computer system.
U
Ultra.
The ANSI SCSI standard allowing up to
40MB/s transfers on a SCSI bus.
V
volume.
(1) A certain portion of data, together
with its data carrier, that can be handled
conveniently as a unit. (2) A data carrier that is
mounted and demounted as a unit, for example,
a reel of magnetic tape, a disk pack.
W
write protect unit check.
The tape cartridge is
physically or logically write protected and the
command is subject to write protect unit checks,
unit check initial status is presented to the
command, and the associated sense data
indicates ERA code 30.
write-type commands.
Any commands that
cause data to be written on tape or affect
buffered write data.
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