2-2 Overview DOC D00 025-A
2.3 Description 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 detail s are described und er Handling unit on page 2-6. The car-
tridges can be brought into the AML/J sy stem or moved out from the
system with the aid of the I/O unit without interrupting the work.
Additional details are descri bed 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 mou nting and discha rging cartridges in the drives and
for inserting/ej ecting cartridge s into/out from the AML/J.
Each cartridge ca n 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 l o cation of
the cartridge in a database which is based on the Vols er (Volume Serial
Number).
Apart from the commands for moving the tape cartridges, the host can
also request status, configuration and cart ridge sto rage infor matio n fr om
the AML/J control u nit.
2.4 Functional units
The AML/J syste m con sists of the follow ing functional u n i t s:
• Drives
• Control cabinet with:
• AML/J control unit
• AMU (AML Management Unit)
• Storag e cel l s (l in e a r ra c k s)
• Handling unit
• I/O units