v Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 5, “Parts listing,” on page 153 to check if a component is a consumable, structural, or FRU part.v If an action step is preceded by “(Trained technician only),” that step must be performed only by a trainedtechnician.Symptom ActionA replacement hard disk drivedoes not rebuild. 1. Make sure that the hard disk drive is recognized by the adapter (the greenhard disk drive activity LED is flashing).2. Review the SAS/SATA RAID adapter documentation to determine the correctconfiguration parameters and settings.A green hard disk drive activityLED does not accuratelyrepresent the actual state of theassociated drive.1. If the green hard disk drive activity LED does not flash when the drive is inuse, run the DSA disk drive test (see “Running the DSA Preboot diagnosticprograms” on page 129.2. Use one of the following procedures:v If the drive passes the test, replace the backplane.v If the drive fails the test, replace the drive.A yellow hard disk drive statusLED does not accuratelyrepresent the actual state of theassociated drive.1. If the yellow hard disk drive LED and the RAID adapter software do notindicate the same status for the drive, complete the following steps:a. Turn off the server.b. Reseat the SAS/SATA adapter.c. Reseat the backplane signal cable and backplane power cable.d. Reseat the hard disk drive.e. Turn on the server and observe the activity of the hard disk drive LEDs.2. See “Problem determination tips” on page 149.Intermittent problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v If an action step is preceded by “(Trained technician only),” that step must be performed only by a trainedtechnician.Symptom ActionA problem occurs onlyoccasionally and is difficult todiagnose.1. Make sure that:v All cables and cords are connected securely to the rear of the server andattached devices.v When the server is turned on, air is flowing from the fan grille. If there is noairflow, the fan is not working. This can cause the server to overheat andshut down.2. Check the event logs (see “Event logs” on page 124).3. See “Solving undetermined problems” on page 148.Chapter 4. Troubleshooting 135
