C ONTENTSM86 S ECURITY USER G UIDE ixStep 3: Replace the failed hard drive.......................... 169Step 4: Rebuild the hard drive .................................... 170Step 5: Contact Technical Support ............................. 171Power supply failure.......................................................... 171Step 1: Identify the failed power supply ...................... 171Step 2: Unplug the power cord ................................... 171Step 3: Replace the failed power supply .................... 172Step 4: Contact Technical Support ............................. 172Fan failure ......................................................................... 173Identify a fan failure .................................................... 173Appendix D .............................................................................. 174Glossary ........................................................................................ 174INDEX ........................................................................... 177