Refer to Take Antistatic Measures.
A lit amber Fault-Service Required LED on a power supply indicates that a failure was detected. You also can use the Oracle ILOM show faulty command at the Oracle ILOM command-line prompt (->) to identify a power supply failure.
Alternatively, to list all known faults in the server, log in to Oracle Solaris and issue the fmadm faulty command, or log in to the Oracle ILOM service processor from the Oracle ILOM Fault Management Shell and issue the fmadm faulty command. For more information about how to use the Oracle ILOM Fault Management Shell and supported commands, refer to the Oracle ILOM User's Guide for System Monitoring and Diagnostics Firmware Release 4.0.x in the Oracle Integrated Lights Out Manager (ILOM) 4.0 Documentation Library at http://www.oracle.com/goto/ilom/docs.
For instructions for disconnecting the CMA left-side connectors, refer to Remove the Cable Management Arm in Oracle Exadata Storage Server X7-2 EF and HC Installation Guide.
Caution - When disconnecting the CMA left-side connectors, be sure to use your arm to support the CMA so that it does not hang down under its own weight and stress the right-side connectors; otherwise, the CMA might be damaged. You must continue to support the CMA until you have reconnected both of the left-side connectors.
Caution - When you remove a power supply, replace it with another power supply; otherwise, the server might overheat due to improper airflow.