Julyl 2017 Glossary 259
L
LC connector
A standard connector for 2-Gbps or 4-Gbps Fibre Channel data transfer. This type of
connector is used on fiber-optic cables.
LED
Light emitting diode. An electronic device that lights up when electricity is passed
through it.
left magazine
A plastic assembly containing 15 Tape Slots that can be inserted into the left side (as
viewed from the front) of Modules 1-15. Right Magazines and Left Magazines are not
interchangeable.
library
A robotic system that stores, moves, mounts, and dismounts data cartridges that are
used in data read or write operations.
load
The process of moving a cartridge from a slot to the tape drive.
LMAG
See left magazine.
LTO
An acronym for Linear Tape-Open technology. An “open format” technology, which
means that users will have multiple sources of products and media.
LUN
Logical Unit Number. An address for a component of a SCSI device. In this device,
the host computer sends the SCSI commands to for the library to LUN 1 of the master
tape drive and sends SCSI commands for the tape drive itself to LUN 0.
M
magazine
A removable array containing 15 cartridge slots that can be inserted into a base or
expansion module.
magnetic tape
A tape with a magnetizable layer on which data can be stored. (T)
magnetic tape drive
A mechanism for controlling the movement of magnetic tape, commonly used to
move magnetic tape past a read head or write head, or to allow automatic rewinding.
(I) (A)
mailslot
A plastic and metal assembly located in the upper right corner of the Base Chassis
used to enter tapes into the library and to remove tapes from the library. The
mailslots are also referred to as Import/Export elements. Before SL150, this was
commonly referred to as a CAP (Cartridge Access Port), mostly internally.
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