Dell PowerVault LTO-3-060 Kullanıcı Kılavuzu - Sayfa 2

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Dell PowerVault LTO-3-060 Kullanıcı Kılavuzu

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Glossary: DELL

PowerVault

Numbers

2:1 compression. The relationship between the quantity of data that can be stored with compression as compared to the quantity of data that can be stored without

compression. In 2:1 compression, twice as much data can be stored with compression as can be stored without compression.

A. See ampere.

ampere (A). A unit of measure for electric current that is equivalent to a flow of one coulomb per second, or equivalent to the current produced by one volt applied

across a resistance of one ohm.

adapter. See adapter card.

adapter card. A circuit board that adds function to a computer.

backups. The short-term retention of records used for restoring essential business and server files when vital data has been lost because of program or server errors or

malfunctions.

backward compatible. Capable of being used with a previous product that was designed for a similar purpose. For example, a tape cartridge that is designed to be

used with a modern tape drive but can also be used with certain older tape drives. Synonymous with downward compatible.

bezel. The removable frame that fits over the front of the tape drive.

burst data transfer rate. The maximum speed at which data is transferred.

byte. A string that consists of a certain number of bits (usually 8) which are treated as a unit and represent a character. A byte is a fundamental unit of data.

C. See Celsius.

capacity. The amount of data that can be contained on storage media and expressed in bytes.

cartridge. See tape cartridge.

cartridge door. On a tape cartridge, the hinged barrier that can be opened to access, or closed to protect, the magnetic tape within the cartridge.

cartridge memory. See LTO cartridge memory.

Celsius (C). Having a thermostatic scale on which the interval between the freezing point and the boiling point of water is divided into 100 degrees, with 0 degrees

representing the freezing point and 100 degrees representing the boiling point.

cleaning cartridge. A tape cartridge that is used to clean the heads of a tape drive. Contrast with data cartridge.

clockwise. In the direction that the hands of a clock rotate, as viewed from the front.

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 server the devices, optional features, and programs installed on the system.

counterclockwise. In a direction opposite to that in which the hands of a clock rotate, as viewed from the front.

current. The quantity of charge per unit of time. Current is measured in amperes.

cycle power. To apply and remove electrical power to a device within a short time span.

LTO3-060 Tape Drive User's Guide