Dell PowerVault LTO-3-060 User Manual - Page 3

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data. Any representations such as characters or analog quantities to which meaning is, or might be, assigned.

data cartridge. A tape cartridge that is 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 that pass between corresponding equipment in a data transmission system. The

rate is expressed in bits, characters, or blocks per second, minute, or hour.

DC. See direct current.

degauss. To make a magnetic tape nonmagnetic by exposing the tape to electrical coils which carry currents that neutralize the magnetism of the tape.

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 firmware that is 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.

direct current (DC). An electric current flowing in one direction only and substantially constant in value.

drive. A data-storage device that controls the movement of the magnetic tape in a tape cartridge. The drive houses the mechanism (drive head) that reads and writes

data to the tape.

drive dump. The recording, at a particular instant, of the contents of all or part of one storage device into another storage device, usually as a safeguard against faults

or errors, or in connection with debugging.

drive head. The component that records an electrical signal onto magnetic tape, or reads a signal from tape into an electrical signal.

drive sense data. See SCSI drive sense data.

dump. See drive dump.

eject. To remove or force out from within.

enclosure. A device, such as a desktop unit, tape cartridge autoloader, or tape library, into which you can install the tape drive.

error log. Maintained by the tape drive, a list that contains the ten most recent error codes. The codes identify errors that pertain to the drive.

F. See Fahrenheit.

Fahrenheit (F). Of or relating to a temperature scale that registers the freezing point of water as 32 degrees and the boiling point as 212 degrees at one atmosphere of

pressure.

file. A named set of records that are stored or processed as a unit.

firmware. The proprietary code that is usually delivered as part of an operating system. Firmware is more efficient than software that is loaded from an alterable

medium, and is 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.

GB. See gigabyte.

Generation 1. The informal name for the Ultrium tape drive, which is the predecessor of the tape drive (Generation 2). The Generation 1 drive has a native storage

capacity of up to 100 GB per cartridge and a native sustained data transfer rate of 15 MB per second.

Generation 2. The informal name for the Ultrium 2 Tape Drive, which is the second-generation version of the Ultrium tape drive (Generation 1). The Generation 2

drive has a native storage capacity of up to 200 GB per cartridge and a native sustained data transfer rate of 35 MB per second.