Sharp R-9360 Información técnica descargar pdf (Pagina 108)

Glossary

Glossary-2 Tenth Edition 9871

C

CAP See cartridge access port.

cartridge. A storage device that consists of

magnetic tape on supply and takeup reels, in

a protective housing. (IBM)

cartridge, 3480 The plastic housing around

the tape. It is approximately 100 mm (4 in.)

by 125 mm (5 in.) by 25 mm (1 in.). A plastic

leader block is attached to the tape for

automatic threading when loaded in a

transport. The spine of the cartridge contains

a label listing the VOLSER (tape volume serial

number).

cartridge, 9840 The plastic housing around

the tape. It is approximately 109 mm (4.3 in.)

by 125 mm (5 in.) by 25 mm (1 in.). The

housing contains the tape and two reels for

automatic threading when loaded in a

transport. The spine of the cartridge contains

a label listing the VOLSER (tape volume serial

number).

cartridge access port (CAP) An assembly

allowing an operator to enter/eject cartridges

during automated operations. The CAP is on

the access door of an LSM. The standard CAP

contains 20 cells. The optional CAP holds 30

cells.

cartridge drive (CD) A device containing

two or four cartridge transports with

associated power and pneumatic supplies.

cartridge magazine A removable module

for cartridge tapes that is placed in the library

by the operator as needed for specific jobs.

cartridge transport An electromechanical

device that threads tape from a cartridge,

moves the tape across a read/write head,

writes data onto or reads data from the tape,

and returns the tape to its cartridge. A

transport is distinct from the power and

pneumatic sources that supply the electricity

and air it needs to function. See also cartridge

drive.

CD See cartridge drive.

cell. A place in which a cartridge resides in a

library.

cleaning cartridge. A cartridge tape

containing special material used to clean the

tape path in a transport.

control unit (CU) A microprocessor-based

unit situated logically between a host channel

(or channels) and from two to eight

transports. It translates channel commands

into transport commands, sends transport

status to the channel(s), and passes data

between the channel(s) and transport(s).

controller A device that coordinates and

controls the operation of one or more input/

output devices, such as workstations, and

synchronizes the operation of such devices

with the operation of the system as a whole.

(IBM)

controller transport unit (CTU) An

electromechanical device within a cartridge

drive that contains control logic and an

associated electromechanical device for

threading tape from a cartridge, moving the

tape across a read/write head, and writing

data onto or reading data from the magnetic

tape. A cartridge drive contains one, two,

three, or four transports. Synonymous with

tape drive.

CU See control unit.

D

data tape. A tape cartridge formatted for use

as a regular data tape for the system in which

it is used.

diagnostic tape An empty cartridge tape

(no data or code) with a “DG” label, which is

used for diagnostic routines.

dismount To remove a cartridge from a

tape drive.

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