Quantum Audio A-Series Manuel D’Utilisation

Glossary

Quantum A-Series Tape Drives User’s Guide

81

C

The degree Celsius (°C) is a unit of temperature.

Specialized RAM used as a buffer between a fast CPU or I/O 

channel and storage which has a relatively slow access time (for 

example, cartridge or diskette), to avoid slowing down the 

former.

Tape cartridge. Super DLT tape II or SDLTtape 600A.

At media insertion, the cartridge receiver assembly is 

responsible for guiding the media into its operating position, 

opening the door, unlocking the cartridge brakes, and securing 

the media for operation. At media ejection, the cartridge receiver 

assembly reverses the process and automatically ejects the 

cartridge a fixed distance from the front of the tape drive.

Council of Europe.

Code of Federal Regulations (United States).

This could be a standard FTP client or the built-in FTP client 

embedded in the SDLT 600A firmware.

Canadian Standards Association, also known as CSA 

International.

Cartridge Tape Module. The main function of the CTM is to 

provide the magnetic recording media used by the tape drive to 

store customer information. The CTM also provides the 

protective cartridge, which allows the media to be removed and 

stored safely.

Code Update (a firmware update).

D

A process that reduces the amount of storage space 

required to hold a particular block of data. Data transfer speed 

and total media capacity are affected by the data compression 

achieved. In accordance with industry practice, a typical 

compression ratio is 2:1 of data storage. Actual compression 

ratios achieved depend on the redundancy of data files being 

written.

A Decibel is a logarithmic unit of sound intensity; 10 times the 

logarithm of the ratio of the sound intensity to some reference 

intensity.

Direct Current

 

is the continuous flow of electricity through a 

conductor such as a wire from high to low potential.