IBM 8686 - Eserver xSeries 360 Hardware Maintenance Manual

Also see for 360: Specifications Operating guide User guide Hardware Maintenance Manual Manual

Contents

POSTWhen you turn on the server, it performs a series of tests to check the operation ofserver components and some of the options that are installed in the server. Thisseries of tests is called the power-on self-test, or POST.If POST finishes without detecting any problems, a single beep sounds, and the firstscreen of the operating system or application program appears.If POST detects a problem, more than one beep sounds, and an error messageappears on the screen. See “Beep symptoms” on page 115 and “POST error codes”on page 134 for more information.Notes:1. If you have a power-on password or administrator password set, you must typethe password and press Enter, when prompted, before POST will continue.2. A single problem might cause several error messages. When this occurs, workto correct the cause of the first error message. After you correct the cause ofthe first error message, the other error messages usually will not occur the nexttime you run the test.Error logsThe POST error log contains the three most recent error codes and messages thatthe system generated during POST. The System Error log contains error messagesthat were issued during POST and all system status messages from the RemoteSupervisor Adapter.You can view the contents of the System Error log from either theConfiguration/Setup Utility program or from the diagnostic programs:v Start the Configuration/Setup Utility program; then, select Error Logs from themain menu; then, select either Post Error Log or System Event/Error Log. See“Starting the Configuration/Setup Utility” on page 28 for details.v Start the diagnostic programs; select Hardware Info from the top of thediagnostic programs screen; select System Error Log from the list that appears;then, follow the instructions on the screen. See “Starting the diagnosticprograms” on page 15 for details.Small computer systems interface (SCSI) messagesIf you receive a SCSI error message while running the SCSISelect Utility program,one or more of the following might be causing the problem:v A failing SCSI device (adapter, drive, controller)v An improper SCSI configurationv Duplicate SCSI IDs in the same SCSI chainv An improperly installed SCSI terminatorv A defective SCSI terminatorv An improperly installed cablev A defective cable14 Hardware Maintenance Manual: xSeries 360 Type 8686