01_02_服务器基础

©2008Hewlett-PackardDevelopmentCompany,L.P.Theinformationcontainedhereinissubjecttochangewithoutnotice服务器基础第一章第二部分•中国惠普工业标准服务器产品部•2008年12月Technologyforbetterbusinessoutcomes课程目标217Jun2008APJESS-BladeSystem服务器系统特征与性能―可靠性和可用性―服务器管理与维护―惠普服务器虚拟化―惠普服务器持续运营与服务继续学习服务器的相关知识，包括可用性、运行维护管理及应用方案。本章内容将涉及：Technologyforbetterbusinessoutcomes可靠性和可用性317Jun2008APJESS-BladeSystemRev.6.424内存保护AdvancedECCCorrectCorrectORDetectDetectCorrectMayNotRAIDMemoryCorrectCorrectCorrectDetectErrorConditionStandardECCCorrectDetectDetectDetectMayNotParityDetectDetectMayNotDetectMayNotMayNotDetectSingle-bitDouble-bitDRAMECCdetectionfailureMemoryTypeAdvancedECCCorrectCorrectORDetectDetectCorrectMayNotAdvancedECCCorrectCorrectORDetectDetectCorrectMayNotRAIDMemoryCorrectCorrectCorrectDetectRAIDMemoryCorrectCorrectCorrectDetectErrorConditionErrorConditionStandardECCCorrectDetectDetectDetectMayNotStandardECCCorrectDetectDetectDetectMayNotParityDetectDetectMayNotDetectMayNotMayNotDetectParityDetectDetectMayNotDetectMayNotMayNotDetectSingle-bitDouble-bitDRAMECCdetectionfailureSingle-bitDouble-bitDRAMECCdetectionfailureMemoryTypeMemoryTypeRev.6.425HP内存保护实施策略•AdvancedECC•AdvancedECC100series•AdvancedECC•OnlineSpare•HotPlugMirrored•HotPlugRAID•AdvancedECC•OnlineSpare•HotPlugMirrored•HotPlugRAID500series•AdvancedECC•Mirroredmemory•OnlineSpare•AdvancedECC•OnlineSpare300seriesProLiantDLseriesProLiantMLseries•AdvancedECC•AdvancedECC100series•AdvancedECC•OnlineSpare•HotPlugMirrored•HotPlugRAID•AdvancedECC•OnlineSpare•HotPlugMirrored•HotPlugRAID500series•AdvancedECC•Mirroredmemory•OnlineSpare•AdvancedECC•OnlineSpare300seriesProLiantDLseriesProLiantMLseriesRev.6.426Parity（校验）Rev.6.427内存错误检查和纠正(ECC)Rev.7.31AdvancedECC•StandardECC−在内存读时发现并纠正1个单位错误−能发现多位错但不能纠正它们•AECC−发现和纠正多位错−发生在单一的DRAM−不提供故障切换或热插拔的能力3–23-24Rev.7.31AdvancedECC—内存写EDC(+8)EDC(+8)EDC(+8)EDC(+8)内存控制器72bits256bits72bits72bits72bits每条数据缓存线发生两次处理3–233–24TechnologyforbetterbusinessoutcomesRev.7.31EDCEDCEDCEDC内存控制器72bits256bits72bits72bits72bitsAdvancedECC—内存读3–25TechnologyforbetterbusinessoutcomesRev.7.31EDCEDCEDCEDC内存控制器72bitsAdvancedECC—内存错误72bits72bits72bits256bits3–233–25TechnologyforbetterbusinessoutcomesRev.7.31EDCEDCEDCEDC内存控制器72bits256bits72bits72bits72bitsAdvancedECC—DRAM故障3–233–26TechnologyforbetterbusinessoutcomesRev.7.31EDCEDCEDCEDCMemoryControllerAdvancedECC—多位错/不同的DRAM条3–26TechnologyforbetterbusinessoutcomesRev.7.31EDCEDCEDCEDCMemoryControllerAdvancedECC—多位错到达同一EDC3–27Rev.6.4215比较ECC和AdvancedECCRev.6.4216Onlinespare在线备用内存Rev.6.4217热插拔镜像内存Rev.7.31高级内存保护AMP3–28•属于AECC内存技术范畴−Onlinespare在线备用内存−单板镜像内存−热插拔镜像内存−热插拔RAID内存Rev.7.31Onlinespare在线备用内存Next•出现DIMM错误的内存bank将自动切换到备用bank上的DIMMsBankA—InuseBankB—InuseBankC—OnlinespareAABBCCBankA上的DIMM发生很多错误来自BankA的数据被拷贝到onlinespareBankC3–28Rev.7.31单板镜像内存−从降级bank自动切换−抵御不可纠正的多位错WriteWriteReadRead3–30Rev.7.31镜像内存CMICGoodDataMemoryBoard1MemoryBoard2X3–31TechnologyforbetterbusinessoutcomesRaid5内存阵列内存盒1内存盒2内存盒3内存盒4CachelineC2D2A2校验B2B1C1D1校验A1B3校验C3D3B4C4校验D4A4A3Rev.7.31RAID内存vs.硬盘阵列•RAID内存−没有机械延迟−5条并行内存总线−作为完整的缓存线运行•硬盘阵列−固有的机械延迟来自于寻道时间和转动等待−单总线−校验盘为瓶颈3–33Rev.5.21系统ROM在线恢复（RecoveryROM）−自动备份—ROMFlash自动组件−冗余ROM—image映像可作为两个独立的ROMs•1个会话包括当前正在使用的ROM版本•1个会话包括以前的版本2–8-9Rev.5.21惠普服务器选件支持RecoveryROM•选件ROM类型•阵列控制器ROM•iLO-2ROM•RILOEIIROM•获取ROMflash智能组件个部署软件−刷新系统或选件ROMs所需的软件•用于ROMFlash的独立智能组件是系统或选件指定的执行文件−从HP网站可以获取最新的部署工具和独立的ROMflash组件2–9Technologyforbetterbusinessoutcomes惠普专用网卡绑定技术06April2005HPRestricted27HP网卡捆绑类型NFT(NetworkFaultTolerance)TLB(TransmitLoadBalancing)IEEE802.3ad--or--SLB(Switch-assistedLoadBalancing)FaultToleranceReceiveLoadBalancingTransmitLoadBalancing06April2005HPRestricted28智能网络包INP交付最大的可用性和性能−适应服务器网络环境的变化，最大化可靠性和性能−监视和分析网络运行条件并将服务器的数据传输重定向到优化的路径−保护网络防止蠕虫类病毒工具INP在第一层交换机扩展了交换机的控制能力由HPLabs发明传统的捆绑受限于第一层交换机的连接LANSwitchBSwitchAIP=1.1.1.1PrimarySecondaryINP观察整个网络运行06April2005HPRestricted29问题:TLB对数据接受没有负载均衡HPProLiantServerHPNetworkAdapterTeam(TLB)1.1.1.1SwitchNIC2(B)SECONDARYNIC1(A)PRIMARYNIC3(C)SECONDARYNIC4(D)SECONDARYSwitchClient1Client3ClientARPTable:1.1.1.1=AClient4Client2HMaximumServerBandwidthTransmit=4000MbitReceive=1000MbitClientARPTable:1.1.1.1=AClientARPTable:1.1.1.1=AClientARPTable:1.1.1.1=AAuthor:SeanMcGeeNoReceiveLoadBalancingSwitchRedundancyTransmitLoadBalancing06April2005HPRestricted30问题:SLB不允许交换机冗余SwitchHPProLiantServerHPNetworkAdapterTeam(802.3adOrSLB)1.1.1.1NIC2(A)SECONDARYNIC1(A)PRIMARYNIC3(A)SECONDARYNIC4(A)SECONDARYClient1Client3ClientARPTable:1.1.1.1=AClient4Client2MaximumServerBandwidthTransmit=4000MbitReceive=4000MbitClientARPTable:1.1.1.1=AClientARPTable:1.1.1.1=AClientARPTable:1.1.1.1=APortChannelAuthor:SeanMcGeeNoSwitchRedundancyReceiveLoadBalancingTransmitLoadBalancing06April2005HPRestricted31方案:DualChannel允许全冗余HPProLiantServerHPNetworkAdapterTeam(DualChannel)1.1.1.1SwitchNIC2(A)SECONDARYNIC1(A)PRIMARYNIC3(B)SECONDARYNIC4(B)SECONDARYSwitchClient1Client3ClientARPTable:1.1.1.1=AClient4Client2HClientARPTable:1.1.1.1=BClientARPTable:1.1.1.1=BClientARPTable:1.1.1.1=AMaximumServerBandwidthTransmit=4000MbitReceive=4000MbitAuthor:SeanMcGeePo