IBM System Storage TS3310, Информация по обслуживанию, Страница: 513 / 531

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.
LME Library Managed Encryption.
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.
LUN Logical Unit Number.
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
Glossary
H-9