IBM TS3100 Setup, Operator, And Service Manual page 365

intervention required. Manual action is needed.
INTRO. Introduction.
I/O. Input/output.
IOP. Input/output processor.
IP. Internet Protocol
IPL. Initial program load.
Internet Protocol Security (IPsec). A protocol suite for
securing Internet Protocol (IP) communications by
authenticating and encrypting each IP packet of a
communication session.
IPsec. See Internet Protocol Security (IPsec).
ISV. Independent software vendor.
ITST. Idle-time self-test.
K
kilogram (kg). One thousand grams (approximately
2.2 pounds).
km. kilometer. 1000 Meters, Approximately 5/8 mile.
L
LAN. Local area network. A computer network within
a limited area.
LCD. See liquid crystal display.
LED. Light-emitting diode.
Linear Tape-Open (LTO). A type of tape storage
technology developed by the IBM Corporation,
Hewlett-Packard, and Certance. LTO technology is an
"open format" technology, which means that its users
will have multiple sources of product and media. The
"open" nature of LTO technology enables compatibility
between different vendors' offerings by ensuring that
vendors comply with verification standards. The LTO
technology is implemented in two formats: the Accelis
format focuses on fast access; the Ultrium format
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.
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LTFS (Linear Tape File System). A specialized format
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for organizing, accessing, and sharing data on LTO tape
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drives.
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.
J-5
Glossary