Sun Microsystems SL8500 manual Row, Column, Elevators

Cartridge Address

Row

Within each LSM (rail) rows are numbered consecutively from the top down. These start with 1 for the SL8500 and 0 for host.

Column

SL8500 column numbers are referenced from the customer interface module, where +1 is right of the center of the drive bays and -1 is to the left of the drive bays. The host software reports two columns for each cell storage panel (column 0 and 1)

CAP

The CAP behavior controlled by host software is as follows:

■The CAPs service all the LSMs in the library.

■CAPs span across three LSMs (1-3).

■Each CAP has three magazines with 13 slots each. Each magazine is adjacent to a separate rail, and can only be accessed by robots on that rail. There is no adjacent section in the CAP for the top LSM (0), which requires pass-thru operations with the elevator.

■When loading cartridges in the CAP, slots can be skipped or magazines missing.

■There is no adjacent magazine section in the CAP for rail 1 (LSM 0), which requires pass-thru operations with the elevator.

■The CAP is treated as an independent component, and does not belong to any one rail.

Examples of CAP Behavior:

■A CAP can be online and operational even though the LSM (rail) identified in the CAP ID is offline or not operational.

■If an LSM is offline, the associated CAPs are not automatically offline.

■If an LSM is online, the associated CAP is not automatically placed online.

■Even if LSMs 1 through 3 are offline, CAPs can be used to enter/eject cartridges for LSM 0.

Elevators

Elevators are considered a type of pass-thru port. Each elevator has three logical pass- thru connections per rail. Each rail can pass-thru to the other three rails.

96154 • Revision K Appendix A Cartridge Slot Locations 123