IBM System Storage TS3310 Setup And Operator Manual page 333

focuses on high capacity. The Ultrium format is the
preferred format when capacity (rather than fast access)
is the key storage consideration. An Ultrium cartridge
has a compressed data capacity of up to 800 GB (2:1
compression) and a native data capacity of up to 400
GB.
liquid crystal display (LCD). A low-power display
technology used in computers and other I/O devices.
loadable. Having the ability to be loaded.
LTO cartridge memory (LTO-CM). Within each LTO
Ultrium data cartridge, an embedded electronics and
interface module that can store and retrieve a
cartridge's historical usage and other information.
LVD. SCSI Bus Low Voltage Differential
M
magnetic tape. A tape with a magnetical surface layer
on which data can be stored by magnetic recording.
MAP. Maintenance analysis procedure.
mask. A pattern of characters that controls the
retention or elimination of portions of another pattern
of characters. To use a pattern of characters to control
the retention or elimination of portions of another
pattern of characters.
master file. A file used as an authority in a given job
and that is relatively permanent, even though its
contents may change. Synonymous with main file.
MB. Mega Byte (usually expressed as data rate in
MB/s or MB/second).
media capacity. The amount of data that can be
contained on a storage medium, expressed in bytes of
data.
media-type identifier. Pertaining to the bar code on
the bar code label of the IBM Ultrium Tape Cartridge, a
2-character code, L1, that represents information about
the cartridge. L identifies the cartridge as one that can
be read by devices which incorporate LTO technology;
1 indicates that it is the first generation of its type.
mega. One million of.
meter. In the Metric System, the basic unit of length;
equal to approximately 39.37 inches.
micro. One millionth of.
microcode. (1) One or more micro instructions. (2) A
code, representing the instructions of an instruction set,
implemented in a part of storage that is not
program-addressable. (3) To design, write, and test one
or more micro instructions. (4) See also microprogram.
microdiagnostic routine. A program that runs under
the control of a supervisor, usually to identify field
replaceable units.
microdiagnostic utility. A program that is run by the
customer engineer to test the machine.
microinstruction. A basic or elementary machine
instruction.
microprogram. A group of microinstructions that
when executed performs a preplanned function.
The term microprogram represents a dynamic
arrangement or selection of one or more groups of
microinstructions for execution to perform a particular
function. The term microcode represents
microinstructions used in a product as an alternative to
hard-wired circuitry to implement certain functions of a
processor or other system component.
MIM. Media information message.
mm. Millimeter.
modifier. That which changes the meaning.
mount a device. To assign an I/O device with a
request to the operator.
MP. Microprocessor.
ms. Millisecond.
MSG. Message.
multipath. Pertaining to using more than one path.
N
N/A. Not applicable.
node. In a network, a point at which one or more
functional units connect channels or data circuits.
NTP. Network Time Protocol. This allows the library
to set its internal date and time based on the date and
time of a sever.
NVS. Nonvolatile storage. A storage device whose
contents are not lost when power is cut off.
O
oersted. The unit of magnetic field strength in the
unrationalized centimeter-gram-second (cgs)
electromagnetic system. The oersted is the magnetic
field strength in the interior of an elongated, uniformly
wound solenoid that is excited with a linear current
density in its winding of one abampere per 4π
centimeters of axial length.
F-5
Glossary