IBM TotalStorage Ultrium 3580 L23, Setup And Operator Manual

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compression. The process of eliminating gaps, empty
fields, redundancies, and unnecessary data to shorten
the length of records or blocks.
configure. To describe to a system the devices,
optional features, and programs installed on the
system.
CRU. See customer replaceable unit.
customer replaceable unit (CRU). A part that a
customer (rather than a service representative) replaces.
current. The quantity of charge per unit of time,
measured in Amperes (Amps, A).
D
data. Any representations such as characters or analog
quantities to which meaning is, or might be, assigned.
data cartridge. A tape cartridge dedicated to storing
data. Contrast with cleaning cartridge.
data compression. See compression.
data transfer rate. The average number of bits,
characters, or blocks per unit of time passing between
corresponding equipment in a data transmission
system. The rate is expressed in bits, characters, or
blocks per second, minute, or hour.
dc. Direct current.
degauss. To make a magnetic tape nonmagnetic by
means of electrical coils carrying currents that
neutralize the magnetism of the tape.
degausser. A device that makes magnetic tape
nonmagnetic.
device. Any hardware component or peripheral, such
as a tape drive or tape library, that can receive and
send data.
device driver. A file that contains the code needed to
use an attached device.
diagnostic. A software program that is designed to
recognize, locate, and explain faults in equipment or
errors in programs.
differential . See High Voltage Differential (HVD).
direct current (dc). An electric current flowing in one
direction only and substantially constant in value.
download. To transfer programs or data from a
computer to a connected device, typically a personal
computer.
drive. See IBM Ultrium 2 Tape Drive or 3580 Ultrium 2
Tape Drive.
drive dump. The recording, at a particular instant, of
the contents of all or part of one storage device into
another storage device.
drive head. The component that records an electrical
signal onto magnetic tape, or reads a signal from tape
into an electrical signal.
E
eject. To remove or force out from within.
electronic mail.
Correspondence in the form of
messages transmitted between user terminals over a
computer network.
e-mail. See electronic mail.
error code log. A repository within a tape drive’s
firmware that contains a history of errors experienced
by the drive.
F
field microcode replacement (FMR) tape. A tape
cartridge that contains new or revised firmware
(microcode) for the IBM Ultrium Tape Drive.
file. A named set of records stored or processed as a
unit.
file transfer protocol (FTP). In the Internet suite of
protocols, an application layer protocol that uses TCP
and Telnet services to transfer bulk-data files between
machines or hosts.
firmware. Proprietary code that is usually delivered as
firmware as part of an operating system. Firmware is
more efficient than software loaded from an alterable
medium and more adaptable to change than pure
hardware circuitry. An example of firmware is the Basic
Input/Output System (BIOS) in read-only memory
(ROM) on a PC motherboard.
FMR tape. See field microcode replacement tape.
FTP site. Any electronic repository of information that
uses the File Transfer Protocol (FTP) for transferring
files to and from servers. Use of an FTP site requires a
user ID and possibly a password.
G
GB.
Gigabyte.
gigabyte (GB). 1 000 000 000 bytes.
grounded. Having or making an electrical connection
with the earth.
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IBM 3580 Ultrium Tape Drive Setup and Operator Guide