Figure29.IDlabelonthefrontoftheserver
•Machinetypeandmodel
•Microprocessororharddiskdriveupgrades
•Failuresymptom
–Doestheserverfailthediagnostictests?
–Whatoccurs?When?Where?
–Doesthefailureoccuronasingleserveroronmultipleservers?
–Isthefailurerepeatable?
–Hasthisconfigurationeverworked?
–Whatchanges,ifany,weremadebeforetheconfigurationfailed?
–Isthistheoriginalreportedfailure?
•Diagnosticprogramtypeandversionlevel
•Hardwareconfiguration(printscreenofthesystemsummary)
•UEFIfirmwarelevel
•IMMfirmwarelevel
•Operatingsystemsoftware
Youcansolvesomeproblemsbycomparingtheconfigurationandsoftwaresetupsbetweenworkingand
nonworkingservers.Whenyoucompareserverstoeachotherfordiagnosticpurposes,considerthem
identicalonlyifallthefollowingfactorsareexactlythesameinalltheservers:
•Machinetypeandmodel
•UEFIfirmwarelevel
•IMMfirmwarelevel
•Adaptersandattachments,inthesamelocations
•Addressjumpers,terminators,andcabling
•Softwareversionsandlevels
•Diagnosticprogramtypeandversionlevel
•Configurationoptionsettings
•Operating-systemcontrol-filesetup
SeeAppendixD“Gettinghelpandtechnicalassistance”onpage579
forinformationaboutcallingIBM
forservice.
Chapter4.Troubleshooting117