v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, System x3550 M3 Types 4254 and 7944,” on page 159 to determine whichcomponents are customer replaceable units (CRU) and which components are field replaceable units(FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by aTrained service technician.v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technicalinformation, hints, tips, and new device drivers or to submit a request for information.Symptom ActionA replacement hard disk drivedoes not rebuild. 1. Make sure that the hard disk drive is recognized by the adapter (the green harddisk drive activity LED is flashing).2. Review the SAS/SATA adapter documentation to determine the correctconfiguration parameters and settings.A green hard disk drive activityLED does not accuratelyrepresent the actual state of theassociated drive.If the green hard disk drive activity LED does not flash when the drive is in use,run the DSA Preboot diagnostic programs to collect error logs (see “Running thediagnostic programs” on page 116).v If there is a hard disk drive error log, replace the affected hard disk drive.v If there is no disk drive error log error log, replace the affected backplane.An amber hard disk drive statusLED does not accuratelyrepresent the actual state of theassociated drive.1. If the amber 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 156.Hypervisor problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, System x3550 M3 Types 4254 and 7944,” on page 159 to determine whichcomponents are customer replaceable units (CRU) and which components are field replaceable units(FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by aTrained service technician.v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technicalinformation, hints, tips, and new device drivers or to submit a request for information.Symptom ActionIf an optional embeddedhypervisor flash device is notlisted in the expected bootorder, does not appear in thelist of boot devices, or a similarproblem has occurred.1. Make sure that the optional embedded hypervisor flash device is selected onthe boot manager Select Boot Device) at startup.2. Make sure that the embedded hypervisor flash device is seated in theconnector correctly (see “Removing a USB embedded hypervisor flash device”on page 208 and “Installing a USB embedded hypervisor flash device” on page209).3. See the documentation that comes with the optional embedded hypervisor flashdevice for setup and configuration information.4. Make sure that other software works on the server.Chapter 3. Diagnostics 87
