Chapter4.Troubleshooting
Thischapterdescribesthediagnostictoolsandtroubleshootinginformationthatareavailabletohelp
yousolveproblemsthatmightoccurintheserver.
Ifyoucannotdiagnoseandcorrectaproblembyusingtheinformationinthischapter,seeAppendixD
“Gettinghelpandtechnicalassistance”onpage705formoreinformation.
Starthere
Youcansolvemanyproblemswithoutoutsideassistancebyfollowingthetroubleshootingproceduresin
thisdocumentationandontheWorldWideWeb.
Thisdocumentdescribesthediagnosticteststhatyoucanperform,troubleshootingprocedures,and
explanationsoferrormessagesanderrorcodes.Thedocumentationthatcomeswithyouroperatingsystem
andsoftwarealsocontainstroubleshootinginformation.
Diagnosingaproblem
BeforeyoucontactLenovooranapprovedwarrantyserviceprovider,followtheseproceduresintheorder
inwhichtheyarepresentedtodiagnoseaproblemwithyourserver.
Step1.Returntheservertotheconditionitwasinbeforetheproblemoccurred.
Ifanyhardware,software,orfirmwarewaschangedbeforetheproblemoccurred,ifpossible,
reversethosechanges.Thismightincludeanyofthefollowingitems:
•Hardwarecomponents
•Devicedriversandfirmware
•Systemsoftware
•UEFIfirmware
•Systeminputpowerornetworkconnections
Step2.ViewthelightpathdiagnosticsLEDsandeventlogs.
Theserverisdesignedforeaseofdiagnosisofhardwareandsoftwareproblems.
•LightpathdiagnosticsLEDs:See“Lightpathdiagnostics”onpage115forinformationabout
usinglightpathdiagnosticsLEDs.
•Eventlogs:See“Eventlogs”onpage122forinformationaboutnotificationeventsand
diagnosis.
•Softwareoroperating-systemerrorcodes:Seethedocumentationforthesoftwareor
operatingsystemforinformationaboutaspecificerrorcode.Seethemanufacturer'swebsite
fordocumentation.
Step3.RunDynamicSystemAnalysis(DSA)andcollectsystemdata.
RunDynamicSystemAnalysis(DSA)tocollectinformationaboutthehardware,firmware,software,
andoperatingsystem.HavethisinformationavailablewhenyoucontactLenovooranapproved
warrantyserviceprovider.ForinstructionsforrunningDSA,seetheDynamicSystemAnalysis
InstallationandUser'sGuide.
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