Lenovo x3550 M5 - Reliability, Availability, and Serviceability

LenovoSystemxServerFirmware(serverfirmware)offersseveralfeatures,includingUnifiedExtensible
FirmwareInterface(UEFI)2.1compliance;ActiveEnergyManagertechnology;enhancedreliability,
availability,andserviceability(RAS)capabilities;andbasicinput/outputsystem(BIOS)compatibility
support.UEFIreplacestheBIOSanddefinesastandardinterfacebetweentheoperatingsystem,
platformfirmware,andexternaldevices.UEFI-compliantSystemxserversarecapableofbooting
UEFI-compliantoperatingsystems,BIOS-basedoperatingsystems,andBIOS-basedadaptersaswell
asUEFI-compliantadapters.
Note:TheserverdoesnotsupportDOS(DiskOperatingSystem).
•VMwareESXiembeddedhypervisor
TheVMwareESXiembeddedhypervisorsoftwareisavailableontheoptionalUSBflashdeviceorSD
adapter.Hypervisorisvirtualizationsoftwarethatenablesmultipleoperatingsystemstorunonahost
systematthesametime.TheUSBembeddedhypervisorflashdevicecanbeinstalledintheinternalUSB
connectoronthesystemboard.TheSDadapterwitembeddedhypervisorsoftwarecanbeinstalledinthe
SDadapterconnectoronthesystemboard.Formoreinformationaboutusingtheembeddedhypervisor,
see“Usingtheembeddedhypervisor”onpage44
.
Reliability,availability,andserviceability
Threeimportantcomputerdesignfeaturesarereliability,availability,andserviceability(RAS).TheRAS
featureshelptoensuretheintegrityofthedatathatisstoredintheserver,theavailabilityoftheserverwhen
youneedit,andtheeasewithwhichyoucandiagnoseandcorrectproblems.
YourserverhasthefollowingRASfeatures:
•3-yearpartsand3-yearlaborlimitedwarranty(MachineType5463)
•24-hoursupportcenter
•Automaticerrorretryandrecovery
•Automaticrestartonnonmaskableinterrupt(NMI)
•Automaticrestartafterapowerfailure
•Backupbasicinput/outputsystemswitchingunderthecontroloftheintegratedmanagementmodule
(IMM)
•Built-inmonitoringforfan,power,temperature,voltage,andpower-supplyredundancy
•Cable-presencedetectiononmostconnectors
•Chipkillmemoryprotection
•Double-devicedatacorrection(DDDC)forx4DRAMtechnologyDIMMs(availableon16GBDIMMsonly).
Ensuresthatdataisavailableonasinglex4DRAMDIMMafterahardfailureofuptotwoDRAMDIMMs.
Onex4DRAMDIMMineachrankisreservedasaspacedevice.
•DiagnosticsupportforServeRAIDandEthernetadapters
•Errorcodesandmessages
•Errorcorrectingcode(ECC)L3cacheandsystemmemory
•FullArrayMemoryMirroring(FAMM)redundancy
•Hot-swapcoolingfanswithspeed-sensingcapability
•Hot-swapharddiskdrives
•IntegratedManagementModule(IMM)
•Memorymirroringandmemorysparingsupport
•Memoryerrorcorrectingcodeandparitytest
•Memorydownsizing(non-mirroredmemory).Afterarestartoftheserverafterthememorycontroller
detectedanon-mirroreduncorrectableerrorandthememorycontrollercannotrecoveroperationally,
theIMMlogstheuncorrectableerrorandinformsPOST.POSTlogicallymapsoutthememorywiththe
uncorrectableerror,andtheserverrestartswiththeremaininginstalledmemory.
•Menu-drivensetup,systemconfiguration,andredundantarrayofindependentdisks(RAID)configuration
programs
Chapter1.TheLenovoSystemx3550M5server15