IBM PPRC Training 内部培训ppt

IBMDS8000CopyService技术交流目录PPRC的实施过程2PPRC的维护和支持4PPRC技术简介31PPRC的切换演练33CopyService简介ESS的PeertoPeerRemoteCopy适用于DS6000,DS8000,SVC本地复制技术Flashcopy存储间复制技术：GlobalMirror(PPRC/A)MetroMirror(PPRC/S)MetroGlobalMirror(PPRCCascade)GlobalCopyGlobalCopyMetroMirrorGlobalMirrorConsistencyGroupConsistencyGroupCoordinatelocalunitsLetCGdatadraintoremoteRecordnewwritesinbitmapsbutdonotcopytoremoteFlashCopyRelationshipsbeingestablishedAllFlashCopyRelationshipsestablished...CGIntervalTimeCoordinationTimeDrainTime.........GlobalCopycontinuallycyclesthroughvolumebitmapscopyingchangeddatatoremotemirrorvolumesCG的几个参数CoordinationTimeMaximumallowedpauseofproductionwriteupdatesfortheConsistencyGroupcoordinationaction•I.e.,whentheMastercoordinatestheformationoftheConsistencyGroupwithallSubordinatesWhencoordinationiscompleted,writesareallowedtocontinueDefault=50milliseconds{Range:0to65535ms(65+seconds)}Ifthe‘coordinationtime”isexceeded,coordinationisstoppedandallwritesareallowedtocontinueDrainTimeMaximumCGdraintimeinsecondsbeforefailing(terminating)currentdrainactivityDefault=30seconds{Range:0to65535(justover18hours)}ConsistencyGroupIntervalTime两个CG之间的时间Default=0seconds{Range=0to65535seconds(justover18hours)}ConsistencyGroupIncPendingNormalStartIncrementRunRevertibleFlashCopyonRemote(NoBGCopy)IncrementCompleteCommitFlashCopyonRemoteChillin’(HostWritesPaused)CROOSingQueryOOSDrainNormalConsistencyGroupinProgressGlobalMirror&GlobalCopyGlobalCopy:数据复制解决方案，多用于数据迁移GlobalMirror:容灾解决方案，带宽有限（距离远，带宽低）情况下的数据级容灾GlobalMirror=GlobalCopy+Flashcopy(增量，NoCopy)+ConsistencyGroupMetroGlobalMirror一个客户的案例目录PPRC的实施过程2PPRC的维护和支持4PPRC技术简介31PPRC的切换演练33物理环境的准备DS8000逻辑配置CopyServiceLicense#applykey-fileC:\2107-75Gxxxx.xml2107.xxxxxxx用于复制的端口SAN连通（DWDM,FCIP）DS8000上用作远程复制的端口在单独的ZONE中DS8000的规划所有RANK中包含相同数量的B卷和D卷有复制关系的B卷和C卷尽量分布在不同RANKCBCBCBCBDS8000的规划CBDCBDCBDCBCBDDB/C/D卷均分布在不同RANK上便于管理频繁使用的D卷放在单独RANK上给B和C卷的RANK少了DS8000的规划以应用（主机）来使用不同的LSS尽量跨偶数个LSS，0001…注意LSS的奇偶和LUN的分布用不同的LSSID区分源和目标盘使用相通的盘ID1000:2000:3000:40001100:2100:3100:41001001:2001:3001:40011101:2101:3101:4101源LSS最多对应4个目标LSS搭建一个MetroMirror建立逻辑通道（以LSS为单位）搭建一个MetroMirror建立逻辑通道#lsavailpprcport-l-remotewwnn5005076308FFC5A810:20#mkpprcpath-remotewwnn5005076308FFC5A8-srclss10-tgtlss20#mkpprcpath-remotewwnn5005076308FFC5A8-srclss11-tgtlss21#lspprcpath1011搭建一个MetroMirror建立MetroMirrorPair#mkpprc-typemmir-modefull1000:20001001:20011100:21001101:2101#lspprc-l1000:20001001:20011100:21001101:2101暂停和恢复：#pausepprc1000:20001001:20011100:21001101:2101#resumepprc-typemmir1000:20001001:20011100:21001101:2101最终由CopyPending状态变为FullDuplex状态搭建一个GlobalMirror建立逻辑通道建立GlobalMirrorPairA-B#mkpprc-typegcp-modefull1000:20001001:20011100:21001101:2101OutofSync=0建立B-C的Flashcopy#mkflash-tgtinhibit-record-persist–nocp2000:30002001:30012100:31002101:3101搭建一个GlobalMirror建立B-C的Flashcopy#mkflash-tgtinhibit-record-persist–nocp2000:30002001:30012100:31002101:3101建立GMSession#mksession-lss10-volume1000,1001A0#mksession-lss11-volume1100,1101A0#lssession1011搭建一个GetroMirror启动GlobalMirror#mkgmir-lss10-sessionA0#showgmir-metrics10目录PPRC的实施过程2PPRC的维护和支持4PPRC技术简介31PPRC的切换演练33Metro&GlobalMirror的切换计划内切换灾备演练、数据验证、D卷……计划外切换真实的灾难、数据损坏……GlobalMirror的计划内切换①停止主机对A的访问，Varyoffvg②暂停GlobalMirror，#pausegmir-lss10-sessionA0③暂停GlobalCopy，#pausepprc1000:20001100:2100(书上无）④将B置为“源”，#failoverpprc-typegcp2000:10002100:1100GlobalMirror的计划内切换⑤检查B-CFlashcopy的SeqNo#是否一致，#lsflash20002001由于是计划内切换，A卷正常VARYOFF，故应该相同⑥用C卷恢复B卷，#reverseflash-fast-tgtpprc2000:30002001:3001⑦恢复B-C的Flashcopy，#mkflash-tgtinhibit-record-persist-nocp⑧灾备主机访问B卷GlobalMirror的回切(需B-A复制)①建立B-A的反向PATH#mkpprcpath-remotewwnn5005076308FFC5A8-srclss20-tgtlss10②建立B-A的GlobalCopy，（B为源，A为目标）#failback-typegcp2000:10002100:1100GlobalMirror的回切(需B-A复制)③停止灾备主机的生产，varyoffvg④检查B-A的GlobalCopy状态，OutOfSync=0FirstPathStatus=True⑤将A置为“源”#failover-typegcp-modefull1000:20001100:2100⑥STOP！用生产主机验证A的数据GlobalMirror的回切(需B-A复制)⑦恢复A-B的GC，（A为源，B为目标）#failback-typegcp-modefull1000:20001100:2100⑧检查是否复制完成，OutOfSync=0FirstPathStatus=0⑨恢复GlobalMirror⑩恢复应用11删除B-A的反向PATHFailover和FailbackFailoverAAAA:BBBB改变盘AAAA的状态为源（可读写）FailbackAAAA:BBBB改变盘BBBB的状态为目标同时AAAA开始向BBBB传数据注意方向！正常情况下B到A的path均删除GlobalMirror的计划外切换①终止GlobalMirror，#rmgmir-lss00-sessionA1②将B置为“源”，#failoverpprc-typegcp2000:10002100:1100③检查B-CFlashcopy状态发生灾难情况下，由于生产主机非正常关机，B-C的状态可能有四种：(A)如果所有flashcopypair的revertible的状态都是“Disabled”，而且所有的sequencenumbers都相等，则正常FRR#reverseflash-fast-tgtpprc2000:20012100:2101GlobalMirror的计划外切换(B)如果所有flashcopypair的revertible的状态都是“Enabled”而且所有的sequencenumbers都相等，则RevertFlash#revertflash2000:20012100:2101(C)如果flashcopypair的revertible的状态有些是“Disabled”，有些是“Enabled”,而且所有的sequencenumbers都相等，则CommitFlash#commitflash2000:20012100:2101GlobalMirror的计划外切换(D)如果某些flashcopypair是revertible,另外一些是not-revertible。所有revertible的状态为“Disabled”的flashcopy的sequencenumbers都相等。所有revertible的状态为“Enabled”的flashcopy的sequencenumbers也都相等，但是和revertible的状态为“Disabled”的flashcopy的sequencenumbers不相等，则RevertFlash#revertflash2000:20012100:2101(E)如果