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Glossary

DLT-S4 Product Manual 149

LED Light Emitting Diode.

LGMR Laser Guided Magnetic Recording.

LVD Low Voltage Differential signalling is an electrical signalling system

that can run at high speeds.

MAM Medium Auxiliary Memory (MAM) is an DLT-S4 tape drive

feature that provides information on the status and prior use history of an

SDLTtape III cartridge.

MB Megabyte. Equal to 1,000,000 (10

) bytes. This is the International

System of Units (SI) definition used by telecommunications engineers

and storage manufacturers.

MDB Motor Driver Board

MR Magneto Resistive.

MRC Heads Magneto Resistive Cluster Heads. A cluster of small, cost-

effective Magneto Resistive (MR) media heads packed densely together.

ms A Millisecond is equal to one thousandth of a second.

Native Capacity The capacity of a given media product in its basic

recording format (without the use of data compression).

Native Mode Refers to the uncompressed storage capacity of a media

subsystem. (See Native Capacity.)

Node In referring to a Fibre Channel network, a node is any device

attached to the network.

PAB Pre-amplifier Board

Parity A method of generating redundant information that can be used

to detect errors in stored or transmitted data.

PCBA Printed Circuit Board Assembly

Peripheral A device added to a system as a complement to the basic

central processing unit (CPU), such as a disk drive, tape drive, or printer.

Port In referring to a Fibre Channel network, a port connects a node to

the network.

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Quantum DLT 7 Handbuch Seite 167