IBM FAStT500 User Guide - Page 35

Checking the indicator lights The controller unit indicator lights display the status of the controller unit and its components. Green indicator lights mean normal operating status; amber indicator lights mean a possible failure. It is important that you check all the indicator lights on the front and back of the controller unit when you turn on the power. After you turn on the power, the indicator lights might blink intermittently. Wait until the controller unit completes its power up before checking for faults. It can take up to 15 minutes for the battery to complete its self-test and up to 24 hours to fully charge, particularly after an unexpected power loss of more than a few minutes. Use the following procedure to check the controller unit indicator lights and operating status. 1 To view the indicator lights, remove the controller unit bezel, as shown in Figure 6 on page 11. 2 Check the indicator lights on the front of the controller unit. The indicator lights are shown in Figure 9 on page 16 and described in Table 2 on page 16. 3 Check the indicator lights on the back of the controller unit, as shown in Figure 10 on page 18 and described in Table 3 on page 19. 4 Check the indicator lights on the mini-hubs, as shown in Figure 11 on page 19 and described in Table 4 on page 20. 5 If all indicator lights show a normal status, replace the bezel; otherwise, run the storage-management software to diagnose and repair the problem. Chapter 2. Operating the controller unit 15