Problem determination tipsBecause of the variety of hardware and software combinations that can encounter,use the following information to assist you in problem determination. If possible,have this information available when requesting assistance from IBM.The model number and serial number are shown in the following illustration.Note: The illustrations in this document might differ slightly from your hardware.v Machine type and modelv Microprocessor or hard disk drive upgradesv Failure symptom– Does the server fail the Dynamic System Analysis diagnostic tests?– What occurs? When? Where?– Does the failure occur on a single server or on multiple servers?– Is the failure repeatable?– Has this configuration ever worked?– What changes, if any, were made before the configuration failed?– Is this the original reported failure?v Diagnostic program type and version levelv Hardware configuration (print screen of the system summary)v UEFI firmware levelv IMM firmware levelv Operating-system softwareYou can solve some problems by comparing the configuration and software setupsbetween working and nonworking servers. When you compare servers to eachother for diagnostic purposes, consider them identical only if all the followingfactors are exactly the same in all the servers:v Machine type and modelv UEFI firmware levelv IMM firmware levelv Adapters and attachments, in the same locationsv Address jumpers, terminators, and cablingv Software versions and levelsv Diagnostic program type and version levelv Setup utility settingsv Operating-system control-file setupFigure 74. Model number and serial numberChapter 4. Troubleshooting 149
