Lenovo x3550 M5 - Light Path Diagnostics

richsetofdiagnostictestsofthemajorcomponentsoftheserver.DSAPrebootcollectsthefollowing
informationabouttheserver:
–Drivehealthinformation
–EventlogsforServeRAIDcontrollersandserviceprocessors
–IMM2.1configurationinformation
–IMM2.1environmentalinformation
–Installedhardware,includingPCIandUSBinformation
–Lightpathdiagnosticsstatus
–Microprocessor,input/outputhub,andUEFIerrorlogs
–Networkinterfacesandsettings
–Optioncarddriverandfirmwareinformation
–RAIDcontrollerconfiguration
–Serviceprocessor(integratedmanagementmodule)statusandconfiguration
–Systemconfiguration
–Vitalproductdata,firmware,andUEFIconfiguration
DSAPrebootalsoprovidesdiagnosticsforthefollowingsystemcomponents(whentheyareinstalled):
1.Emulexnetworkadapter
2.IMMI2Cbus
3.Memorymodules
4.Microprocessors
5.Opticaldevices(CDorDVD)
6.SASorSATAdrives
7.LSIcontroller
8.Broadcomnetworkadapter
9.FusionIOstorage
10.IntelGPU
11.NvidiaGPU
See“RunningtheDSAPrebootdiagnosticprograms”onpage68formoreinformationonrunningthe
DSAPrebootprogramontheserver.
•Troubleshootingbysymptom
Thesetableslistproblemsymptomsandactionstocorrecttheproblems.See“Troubleshootingby
symptom”onpage70
formoreinformation.
Lightpathdiagnostics
LightpathdiagnosticsisasystemofLEDsonvariousexternalandinternalcomponentsoftheserverthat
leadsyoutothefailedcomponent.Whenanerroroccurs,LEDsarelitontheoperatorinformationpanel
onthefrontoftheserver,thenonthefailedcomponent.ByviewingtheLEDsinaparticularorder,you
canoftenidentifythesourceoftheerror.
WhenLEDsarelittoindicateanerror,theyremainlitwhentheserveristurnedoff,providedthattheserveris
stillconnectedtopowerandthepowersupplyisoperatingcorrectly.
BeforeyouworkinsidetheservertoviewlightpathdiagnosticsLEDs,readthesafetyinformation“Safety”
onpagev
and“Handlingstatic-sensitivedevices”onpage118.
Chapter3.Troubleshooting59