服务器基本知识

„ModemInternetASPApplicationServersISPISPISPISPSANNASSwitchesFirewallServerLoadBalancersWebServersWebServersApplicationServersApplicationServersStorageArrayUnitsDatabaseServerCachingServerDatabaseServerVPNServerRAID/StorageServerNASWorkstationsFirewallServerDatabaseServerƒCPU:RISC,RISCUNIX,SunSPARCHPPARISCDECAlphaSGIMIPS;IAIntelArchitectureServer,PC,x86CISCWindowsNT/Windows2000/Linux,IntelPentiumIII(P4)/Intel(P4)XEONPCRISC„PCIntel,,SunFujitsuSPARC,HPAlpha,SCSI,Unix,,.Unix,PC„PCLinuxSCOUnixSolarisForX86Unix,NovellNetWare,PC,,PCPC,PC,;WindowsNT/2000,Windows9598,,PC,PC,„:,„:WebDatabaseFileMailVOD,Print:,()1U2U4Uƒ1U=1.75=4.445cmPC„CPU„I/O„„„PC„PCPC„„„„„„——PCPCSCSI„——PC8724ECC„„——PCI“”PC„——PCRMERMSLCD„„PCLT200ALT300AAGP„„PC„TCO„PCTCOPC100234120010000407200PCCPU1000PCPCPC:““””„SMP„„„„PCI„RAID„„SMPSMPCPUCPUCPUCPU„CPUCentralProcessingUnit„CPUCPU„„„Cache„„CPU„CPU„„EPIC——IA64CPU„„„„Cache„CacheCacheIntelXeonCPUIntelXeonCPU„3.06GHz/512KB„„IntelNetBurst„IA„„30MPHyper-Threading•–(Multi-Threading)–(Multi-tasking••XEON336022SMPSMP„SMPCPUCPU„CPUSMPCPUSMP„SMP„SMP„2.4-3.2800512KB1.8-3.063.06GHz4005334HPCSMPOLTPHPC1.5/2/4/6MB1MB/2MB1MB@3.06GHz512KB512KB1.5GHz1.5-2.81.8-3.06(GHz)400400400/5338821SMPItanium2XEONMPXEONDPCPU„CPUECC„ECCErrorCorrectCode„„„ECC12„ECCx2x„X4x4Chipkill„X8x8ChipkillChipkillChipkill„Chipkill„ECCRegisteredECCRegisteredECCRegisteredECCRegistered„ECCRegisteredRegisterICPLLICSPDIC„RegisterICDDRDDR„DDRDoubleDataRate„2.5VDDRDDRSDRAMSDRAMDDRDDR„IDEintergradeddriveelectronicsPC„SCSISmallComputerSystemInterface/„CPU„I/O„„S-ATASerialATAATAATAIDE„ATAATAATAS-ATASCSISCSI„NarrowSCSIWideSCSI„Narrow5087„Wide681615Narrow„FastUltraUltra2Ultra3Ultra320„SELVDHVD„PCIPCIPCI--XXPCI-X133MHz---1PCI-X100MHz--PCI-X66MHz-----4PCI-XPCI64bit133MHzPCI-XPCIPCIPCI-XPCI14%-35%PCI-XPCIPCI--XXRAIDRAIDRAIDRAID„RAID„„;;„RAIDRAID„RAID„RedundantArrayofIndependentDisks„RAIDRAID——RAID0RAID0——RAID0RAID(N)2NNoRAID——RAID1RAID1——RAID1N/2()2N/2Yes