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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
m
Meter. In the Metric System, the basic unit of length; equal to approximately 39.37 inches.
M8
LTO Type M Data Cartridge.
MB
Mega Byte (expressed as data rate in MB/s or MB/second).
magnetic tape
A tape with a magnetic 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 that is used as an authority in a specific job and that is relatively permanent, even though its contents might change. Synonymous with main file.
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 that 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, which is 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 run completes a planned function.
The term microprogram represents a dynamic arrangement or selection of one or more groups of microinstructions for execution to run a particular function.
The term microcode represents microinstructions that are 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 protocol allows the library to set its internal date and time that is based on the date and time of a sever.
NVS
IBM TS22xx Tape Drives 77
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