2.3Description of function

The AML/J system can be installed on the unfinished floor or on a false floor.

The handling unit moves the cartridges between the storage cells, drives and the I/O unit. The handling unit has a gripper. A barcode scanner on the gripper identifies the cartridges at the compartments in the archive. Further details are described under Handling unit on page 2-6. The car- tridges can be brought into the AML/J system or moved out from the system with the aid of the I/O unit without interrupting the work. Additional details are described under I/O unit on page 2-7.

Manual access to the compartments in the archive, the handling unit and the drives is through an access door after switching off the power supply.

The cartridges in the AML/J are moved by host requests. Primary requests are for mounting and discharging cartridges in the drives and for inserting/ejecting cartridges into/out from the AML/J.

Each cartridge can have an external machine and user readable label to identify the cartridge in the AML/J at stocktaking and when adding a cartridge to the AML/J. The AMU stores the physical storage location of the cartridge in a database which is based on the Volser (Volume Serial Number).

Apart from the commands for moving the tape cartridges, the host can also request status, configuration and cartridge storage information from the AML/J control unit.

2.4Functional units

The AML/J system consists of the following functional units:

Drives

Control cabinet with:

AML/J control unit

AMU (AML Management Unit)

Storage cells (linear racks)

Handling unit

I/O units

2-2 Overview

DOC D00 025-A

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Image 14
ADIC Switches manual Description of function, Functional units