Tandberg Data 600 manual

SDLT 600 Product Manual

C

Cache	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, tape or diskette), to avoid slowing down the former.
Cartridge	At media insertion, the cartridge receiver assembly is responsible
Receiver	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 data cartridge a
	fixed distance from the front of the tape drive.
Compressed	Capacity after data has been processed, using either software or
Capacity	hardware, to reduce storage space while maintaining data
	integrity. (See also Data Compression.)
CSA	Canadian Standards Association, also known as CSA
	International.
CTM	Cartridge Tape Module. The main function of the SDLT’s CTM
	is to provide the magnetic recording media used by the tape drive
	to store customer information. The CTM also provides the
	protective cartridge that allows the media to be removed and
	stored safely.

D

Data	A process that reduces the amount of storage space required to
Compression	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.
DC	Direct Current.
DCM	Data Control Module. The main functions of the DCM are to
	provide the path and guides for the all media motion inside the
	tape drive and to write data to and read data from the media.

81-81184-02 REV A01 March 2004 G-3