Dell TL4000 User Guide - Page 32

An error code is displayed on the Operator Control Panel display and the error LED illuminates. The error code remains on the Operator Control Panel until a push button is pressed, which causes the Operator Control Panel to return to the Home Screen. v Numeric error codes are only used for unrecoverable errors, otherwise text status messages are displayed. Power-ON display When the library powers ON or resets, it goes through several internally controlled processes that allow it to get initialized and running. These processes are called Power-On-Self-Test (POST). During the POST the Operator Control Panel displays information that might be meaningless until POST is complete. When the POST is finished, the library displays the Startup screen, then the Home screen. The Startup screen is the first screen that displays after the library is powered ON. It contains the following information: v Firmware Rev: the current level of library firmware v Drives: the total number of drives that the library can support v Magazines: the total number of magazines in the library v I/O station: the status of the I/O station While the library is going through its power up cycle, the library state is monitored by way of the OCP; however, you might not be able to make any configuration changes until the unit completes its initialization routine. Change attempts are ignored. Startup Firmware Rev: Drive: Magazines: I/O Station: 120R 1 2 empty Idle Random TL4000 a77ug187 Accessor Idle Rand Drive 1 2 Figure 2-1. Power-ON screens Note about the front panel LEDs All LEDs are updated during power ON and reset sequences. Upon power ON or software reset, the library illuminates all LEDs as soon as POST allows. When initialization starts, all LEDs are extinguished and the Ready/Activity LED flashes at a rate of approximately one second per cycle. When the mechanical initialization is complete, the Ready/Activity LED stops flashing and be constantly illuminated. If a library failure occurs, the Ready/Activity LED turns OFF and the Error LED illuminates. The Operator Control Panel also displays an error code to help identify the failure. 2-2 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide