236 IBM System x3850 X6 and x3950 X6 Planning and Implementation GuideKVM keyboard video mouseKW kilowattsLAN local area networkLC line cordLCD liquid crystal displayLDAP Lightweight Directory AccessProtocolLED light emitting diodeLER Live Error RecoveryLP low profileLRDIMM load-reduced DIMMLUN logical unit numberLV low voltageMAC media access controlMB megabyteMCA Machine Check ArchitectureMESI modified exclusive shared invalidMLC multi-level cellMR MegaRAIDMSM MegaRAID Storage ManagerMTM machine type modelNBD next business dayNEMA National Electrical ManufacturersAssociationNI new instructionsNL nearlineNMI non-maskable interruptNOS network operating systemNTLM NT LAN ManagerNUMA Non-Uniform Memory AccessOLAP online analytical processingOLTP online transaction processingOS operating systemPCI Peripheral ComponentInterconnectPCI-SIG PCI Special Interest GroupPDU power distribution unitPE Preinstallation EnvironmentPFA Predictive Failure AnalysisPOST power-on self testPXE Preboot eXecution EnvironmentQPI QuickPath InterconnectRAID redundant array of independentdisksRAM random access memoryRAS remote access services; rowaddress strobeRDHX rear door heat exchangerRDIMM registered DIMMRHEL Red Hat Enterprise LinuxRISC reduced instruction set computerROC RAID-on-cardROM read-only memoryRPM revolutions per minuteRSA Remote Supervisor AdapterRSS Receive-side scalingSAC Special Administration ConsoleSAN storage area networkSAS Serial Attached SCSISATA Serial ATASBB system building blockSCM Supply Chain ManagementSCO Santa Cruz Operation, IncSED self-encrypting driveSFP small form-factor pluggableSLC Single Level CellSLES SUSE Linux Enterprise ServerSMI scalable memory interconnectSMX Safer Mode ExtensionsSNMP Simple Network ManagementProtocolSQL Structured Query LanguageSSD solid state driveSSH Secure ShellSSL Secure Sockets LayerSSM Service and Support ManagerTB terabyteTCP/IP Transmission ControlProtocol/Internet ProtocolTDP thermal design powerTPM Trusted Platform ModuleTTY teletypewriterTXT textUCO USB Conversion OptionUEFI Unified Extensible FirmwareInterfaceUIM Upward Integration ModuleUPS uninterruptible power supplyUSB universal serial busUXSP UpdateXpress System Packs