Linear Tape-Open (LTO)
A type of tape storage technology that is developed by the IBM Corporation, Hewlett-Packard, and
Quantum. LTO technology is an "open format" technology, which means that its users 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 verication 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 30 TB (2.5:1 compression) and a native data capacity of up to 12 TB.
Liquid crystal display (LCD)
A low-power display technology that is used in computers and other I/O devices.
Loadable
The ability to be loaded.
LME
Library Managed Encryption.
LTO
See Linear Tape-Open.
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
M8
LTO 8 Type M Cartridge.
MAC address
The Media Access Control address of a computer networking device.
Magnetic tape
A tape with a magnetic surface layer on which data can be stored by magnetic recording.
Management GUI
Web User Interface, Web UI, Web GUI.
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 le
A le that is used as an authority in a job and that is relatively permanent, even though its contents
might change. Synonymous with main le.
Maximum Transmission Unit (MTU)
The size of the largest packet that a network protocol can transmit.
MB
Megabyte (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.
Glossary
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