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StorageTek SL3000 User's Guide E20875-05 |
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# B Wall Diagrams

This appendix explains special library cells, such as reserved system slots and the module identification blocks. Additionally, the appendix contains library wall maps for each possible module configuration

## Reserved System Slots

Both the Base Module and the Drive Expansion Module have reserved system cells on the lower rear wall. These cells provide special functions for the library and tape drives. Do not place data cartridges in a reserved slot. The reserved cells are composed of:

- Two swap cells in column 2, rows 49 and 50.

- One diagnostic cell in column 2, row 51, and four diagnostic cells in column 3, rows 49, 50, 51, and 52.

- A module identification block in column 4, rows 49, 50, 51, and 52 (see Figure B-1).

- Four cleaning cartridges in column 5, rows 49, 50, 51, and 52, and four cleaning cartridges in column 6, rows 49, 50, 51, and 52.

  Figure B-1 Reserved System Cells

## Module Identification Block

Each module has an identification block with labels that identify the module configuration. This block is on the lower rear wall in the forth column from the left, rows 49, 50, 51, and 52. During an initialization or after an upgrade, the robotic assembly visits the module identification block to determine the module configuration.

The block identifies the:

- Type of module: Base Module, Drive Expansion Module, Cartridge Expansion Module, Parking Expansion Module, or Access Expansion Module.

- Back wall configuration: 1 drive array, 2 drive arrays, 3 drive arrays, 4 drive arrays, arrays, bulk load magazines, or empty.

- Front wall configuration: Arrays, cartridge access port, CAP window, empty, or bulk load magazines.

- Options: Arrays, op panel or window, empty, or service bay.

Figure B-2 Module Identification Block Base Module Example

### Special Labels

The CAPID/ label and NOMAG/ label are special labels that do not include an icon.

- CAPID/ is mounted only at the top of all CAPs as a generic identifier for the library if the CAP does not have any magazines installed on which to target.

- NOMAG/ is mounted behind the removable magazines in the bulk load AEM.

Table B-1 Special Labels

Function | Label Text | Barcode | Icon
--- | --- | --- | ---
Cartridge Access Port ID | SPECIAL: CAP IDENTIFICATION | CAPID/ | None
No Magazines | SPECIAL: NO MAGAZINES | NOMAG/ | None

## Wall Diagrams

- Base Module front wall (Figure B-3)

- Base Module rear wall (Figure B-4 and Figure B-5)

- DEM front wall (Figure B-6 and Figure B-7)

- DEM rear wall (Figure B-8 and Figure B-9)

- CEM front wall (Figure B-10)

- CEM rear wall (Figure B-11)

- Left PEM (Figure B-12)

- Right PEM (Figure B-13)

- Left AEM (Figure B-14)

- Right AEM (Figure B-15)

Figure B-3 Base Module, Front Wall

Figure B-4 Base Module, Rear Wall

Figure B-5 Base Module, rear wall with 24 drives

.

Figure B-6 DEM Front Wall

Figure B-7 DEM Front Wall (continued)

Figure B-8 DEM Rear Wall

Figure B-9 DEM Rear Wall (continued)

Figure B-10 Cartridge Expansion Module, Front Wall

Figure B-11 Cartridge Expansion Module, Rear

Figure B-12 Parking Expansion Module, Left

Figure B-13 Parking Expansion Module, Right

Figure B-14 Access Expansion Module, Left

Figure B-15 Access Expansion Module, Right