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Glossary
magazine A container that holds cartridges in the
cells provided and is inserted into the CAP.
magnetic tape A tape with a magnetizable layer
on which data can be stored. Synonymous with tape.
Main menu The top-level menu on the operator
panel display.
manual mode A relationship between a library
and all attached clients. Tape libraries operating in
manual mode have been placed offline to all client
CPUs and require human assistance to perform
cartridge operations.
Mb See megabit.
MB See megabyte.
Mb/s Megabits per second.
MB/s See megabytes per second.
media type A type of removable media. For
example, a DLT IV media type indicates that the
cartridge is for use in a Quantum DLT drive.
megabit (Mb) (1) One million (10
20
1,048,576 (20
) bits of storage.
megabyte (MB) (1) One million (10
20
1,048,576 (20
) bytes of storage.
megabytes per second (MB/s) A measurement
that usually describes the speed of data transfer.
meter (m) A metric measurement of length equal
to 1.0936 yards, 3.2808 feet, or 39.3696 inches.
micro (µ) A prefix that means one one-millionth
-6
(10
).
microcode See firmware.
millimeter (mm) A unit of measure equal to
-3
one-thousandth (10
) of a meter or 0.04 in.
millisecond (ms) One thousandth (10
second.
milliwatt (mw) One thousandth (10
mm See millimeter.
Glossary-6
mount a cartridge The process by which the
library robot retrieves a cartridge from a cell and
places it into a drive.
ms See millisecond.
mV Millivolt or one one-thousandth (10
volt.
mw See milliwatt.
N
network An arrangement of nodes and branches
that connects data processing devices to one
another through software and hardware links to
facilitate information interchange.
network file system (NFS) A distributed file
system and its associated network protocol.
network gateway A four-byte notation that
makes the library accessible to a large network,
which consists of two or more subnets, through a
gateway connection.
6
) bits. (2)
non-backward read compatible (NBRC) The
inability of an SDLT 220N tape drive to read
recorded data from an earlier version of DLT tape
6
) bytes. (2)
drive. Contrast with backward read compatible
(BRC).
O
offline Neither controlled by, nor communicating
with, a computer.
online Pertaining to the operation of a functional
unit when under the direct control of the
computer.
open fiber control (OFC) Open Fiber Control
(OFC) cables incorporate a safety mechanism that
prevents damage to the human eye when the
connection (link) is disconnected.
-3
) of a
operator panel (1) A panel that enables a user to
-3
configure and diagnose the library or drive. (2) The
) of a watt.
user interface for libraries or drives.
Seventh Edition
-3
) of a
MT9104
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