Glossary
Quantum DX-Series User’s Guide
134
D
DLT
Digital Linear Tape technology is owned, developed, and
manufactured by Quantum Corporation. DLT tape drives use half-inch
wide tape.
E
ESD
Electro-Static Discharge
G
Gripper
A mechanical component of the extension axis assembly
(robotics) which grips and holds a tape cartridge in transit
H
Host
The device or devices to which the library is connected.
I
IEC
The International Electrotechnical Commission is based in Geneva,
Switzerland.
M
MSBF
Mean Swaps Before Failure
MTBF
Mean Time Between Failures
MTTR
Mean Time To Repair
N
NEMA
National Electrical Manufacturers Association
P
PCI
The PCI bus typically runs at speeds of 33 MHz or 66 MHz and is
usually 32 bits wide. This means that it passes 32 bits of data
simultaneously as if down 32 separate wires. Some of the most recent
computers include "wider" 64-bit PCI buses, and already certain very
high-end video capture cards offer improved performance if connected to
a 64-bit PCI bus.
R
RAID
Redundant Array of Independent Disks is a technology through
which several physical storage disks are grouped into an array that
appears to an operating system as one or more physical devices.
RS-232C
Short for Recommended Standard-232C, a standard interface
approved by the Electronic Industries Association (EIA) for connecting
serial devices. This standard is for ASYNCHRONOUS TRANSFER
between computer equipment and accessories. Data is transmitted bit by
