Module 1
Glossary-5
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 1–10. Left magazines and right magazines are not
interchangeable.
library
A robotic system that stores, moves, mounts, and dismounts tape cartridges that are
used in data read or write operations.
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 for the library to LUN 1 of the master tape
drive and sends SCSI commands for the tape drive itself to LUN 0.
MAC address
The media access control address is a unique identifier assigned to devices for
communication on a physical network.
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
The Standard Mailslot is 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. Previous StorageTek libraries called this a CAP (Cartridge Access Port).
mailslot expansion
A term describing the Base Module right magazine (the magazine immediately below
the Standard Mailslot) when the library has the expanded mailslot configuration. The
mailslot capacity expands from four cartridges (Standard Mailslot) to 19 cartridges.
midplane
A card mounted in the base chassis or expansion chassis that is behind the tape slots
and in front of the tape drives. Other cards connect to it either by direct connection or
by a cable.
Module 1
See base module.
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