IBM Magstar 3494 manual Glossary, Bar-code reader. See vision system

Glossary

This glossary de®nes the special terms, abbreviations, and acronyms used in this publication. If you do not ®nd the term you are looking for, refer to the index or to IBM Dictionary of Computing , ZC20-1699.

Numerics

3490E. Term used to mean a 3490E tape subsystem.

3494. See Tape Library Dataserver.

A

APPC. Advanced Program-to-Program Communication. A form of LAN communication protocol.

action bar. In the library manager application, the area at the top of the primary window that contains keywords that give users access to actions available in that window. After users select a choice in the action bar, a pull-down extension is displayed.

active accessor. Accessor currently being used to move cartridges within the unit.

active library manager. Library manager controlling library operation.

active window. In the library manager, the window that is in current use and which receives keyboard input.

advanced program-to-program communication (APPC). A form of LAN communication protocol.

auto mode. An operating mode, whereby, the attached host systems directs the operation of the tape library without operator interaction.

automatic cartridge loader (ACL). A device that allows multiple cartridges to be loaded from a tape drive without operator intervention.

available. The term used to indicate that a component is available for use by the library manager. Components in the tape library (cartridge accessor, gripper, Convenience Input¤Output Station, tape drives) are either available or unavailable for use. Compare with Online.

B

bar code. A code representing characters by sets of parallel bars of varying thickness and separation.

bar-code reader. See vision system.

barrier door. Used, by service personnel, to separate the service bay from the main aisle of the 3494. This allows for concurrent service to the accessor and the associate hardware.

C

cartridge. Term used to refer to either the IBM Cartridge System Tape or the IBM Enhanced Capacity Cartridge System Tape.

cartridge accessor. The physical mechanisms, within the tape library that identify, retrieve, and move tape cartridges. It consists of a bar-code reader and picker mechanism.

cartridge automation. The process where the tape library automatically performs actions for inserting, ejecting, mounting, demounting, loading, and unloading of tape cartridges.

Cartridge System Tape. The base tape cartridge media that is used with 3480 or 3490 Magnetic Tape Subsystems.

category. A grouping of volumes that have a common attribute, such as volumes to eject, volumes newly added to the library, and volumes to clean devices.

caution notice. A special note in text that calls attention to a situation that is potentially hazardous to people because of some existing situation. See also Danger notice.

cell. See storage cell.

check box. On the library manager screen, a control that consists of a displayed square box and selectable text. It acts like a switch.

click. With the library manager, the act of pressing a button on a pointing device while holding the pointing device pointer on the selected text. See also double-click.

client area. The area in the center of a window that contains the main information of the window.

code. The term used to refer to the internal programs that comprise the library manager application.

command. A control signal that initiates an action or the beginning of a sequence of actions.

component. A part of a functional unit; for example, the gripper mechanism is a component of the cartridge accessor.

© Copyright IBM Corp. 1993, 1999 341