User's Guide

Glossary
100 Quantum|ATL PowerStor L500 Series Tape Library User’s Guide
F FCC Class A
Standard established by the U.S. Federal
Communications Commission governing electromagnetic
emissions in a commercial environment.
FSE
Field Service Engineer.
HHost or host computer
The computer that issues SCSI commands
to control the library robotics.
M MTBF
Mean Time Between Failures.
MTTR
Mean Time To Repair.
N Native mode
The uncompressed storage capacity of a tape
subsystem. A DLT7000 tape drive can store 35 GB in native mode
and 70 GB with 2:1 compression.
NVRAM
Nonvolatile random access memory.
O Off-line
Ready for communication with a diagnostic computer.
On-line
Ready for communications with a host.
P Password
A sequence of characters used to gain access to the
protected portions of the computer system.
Pick
The act of removing a cartridge from one location in
preparation for placing it in another location.
Place
The act of placing a cartridge in a location after it has been
picked from another location.
PROM
Programmable Read-Only Memory.
R RAM
Random Access Memory.
RS-232
A serial communications cabling and protocol standard
for 9-pin connectors.
RS-422
A serial communications cabling and protocol standard
designed to replace the older RS-232 standard that supports higher