You can remove and replace field-replaceable units (FRUs) from the SAN Volume Controller, redundant ac-power switch, and uninterruptible power supply.
Each FRU has its own removal procedure. Sometimes you can find that a step within a procedure might refer you to a different remove/replace procedure. You might want to complete the new procedure before you continue with the first procedure that you started.
Remove or replace parts only when you are directed to do so by the IBM® System Storage SAN Volume Controller Troubleshooting Guide. Start all problem determination and repair procedures with MAP 5000: Start.