对Oracle数据库进行容灾

核心提示： ■ Data Change Map (DCM)■ Replicated Data Set (RDS)一个RDS包括了所有的主节点和备用节点的复制卷组(RVG)，RDS不是一个具体存在的对象，对Oracle数据库进行容灾(4)，而是一个VVR复制技术中的一个概念，在异步模式下VVR的数据复制

■ Data Change Map (DCM)

■ Replicated Data Set (RDS)

一个RDS包括了所有的主节点和备用节点的复制卷组(RVG)。RDS不是一个具体存在的对象，而是一个VVR复制技术中的一个概念。

在异步模式下VVR的数据复制和数据流向

在同步模式下VVR的数据复制和数据流向

另外，VVR是Veritas Volume Manager (VxVM)的一个单独的option，需要单独的license。

Veritas Volume Replicator 的安装

主备节点硬件和软件配置和版本如下：

主节点 机器名：lxsfrac01

Sun Microsystems Sun Fire X4100 Server

操作系统 solaris10u4 x86_64

VVR版本: Veritas Volume Replicator 5.0 GA

Oracle 版本： Oracle 10gR2 Enterprise Edition

磁盘阵列：SAN/ HDS AMS 1000

Public网卡：e1000g0 私有(复制)网卡：e1000g1

备用节点机器名：lxsfrac02

软硬件环境与主节点相同

两个节点分别安装VVR和vxfs，安装方法相同，以lxsfrac02为例：

放入安装介质，一般Solaris都由vold进程自动mount CD，

如果需要手工

mount：mount–Fhsfs–oro/dev/dsk/c0t6d0s2/cdrom
　　root@lxsfrac02#cd./volume_replicator/
　　root@lxsfrac02#ls
　　copyrightdocsinstallvvrpkgsrelease_notesscriptstoolsuninstallvvr
　　root@lxsfrac02#ls-l
　　total24
　　-rw-r--r--1rootroot476Dec152006copyright
　　drwxrwxr-x2rootroot512Jun2110:13docs
　　-rwxr-xr-x1rootroot2283Apr142007installvvr
　　drwxrwxr-x3rootroot1024Jun2110:13pkgs
　　drwxrwxr-x2rootroot512Jun2110:13release_notes
　　drwxrwxr-x3rootroot512Jun2110:13scripts
　　drwxrwxr-x3rootroot512Jun2110:13tools
　　-rwxr-xr-x1rootroot2283Apr142007uninstallvvr
　　root@lxsfrac02#./installvvrlxsfrac02
　　VeritasVolumeReplicator5.0InstallationProgram
　　Copyright(c)2007SymantecCorporation.Allrightsreserved.Symantec,theSymantecLogoaretrademarksorregisteredtrademarksofSymantecCorporationoritsaffiliatesintheU.S.andothercountries.Othernamesmaybetrademarksoftheirrespectiveowners.
　　TheLicensedSoftwareandDocumentationaredeemedtobe"commercialcomputersoftware"and"commercialcomputersoftwaredocumentation"asdefinedinFARSections12.212andDFARSSection227.7202.
　　Logsforinstallvvrarebeingcreatedin/var/tmp/installvvr-mrk46Y.
　　Initialsystemcheck:
　　CheckingVVRinstallationonlxsfrac02............................................notinstalled
　　Checkingarchitectureonlxsfrac02................................................i386
　　VeritasVolumeReplicator5.0InstallationProgram
　　Checkingsystemlicensing
　　Installinglicensingpackages
　　VVRisnotlicensedonlxsfrac02
　　EnteraVVRlicensekeyforlxsfrac02:******************
　　******************successfullyregisteredonlxsfrac02
　　PermanentVVRlicenseregisteredonlxsfrac02
　　Doyouwanttoenteranotherlicensekeyforlxsfrac02?[y,n,q](n)
　　VeritasVolumeReplicator5.0InstallationProgram
　　Checkinginstalledpackagesonlxsfrac02
　　VeritasVolumeReplicator5.0InstallationProgram
　　VVRcanbeinstalledwithoutoptionalpackagestoconservediskspace.
　　Additionalpackagesaretypicallyinstalledtosimplifyfutureupgrades.
　　1)RequiredVeritasVolumeReplicatorpackages-855MBrequired
　　2)AllVeritasVolumeReplicatorpackages-861MBrequired
　　3)StorageFoundationEnterprisepackages-911MBrequired
　　Selectthepackagestobeinstalledonallsystems?[1-3,q,?](3)2
　　VeritasVolumeReplicator5.0InstallationProgram
　　ThefollowingVVRpackageswillbeinstalled:
　　VRTSperlVeritasPerl5.8.8Redistribution
　　VRTSvlicVeritasLicensing
　　VRTSicscoSymantecCommonInfrastructure
　　VRTSpbxSymantecPrivateBranchExchange
　　VRTSsmfSymantecServiceManagementFramework
　　VRTSatSymantecProductAuthenticationService
　　VRTSobc33VeritasEnterpriseAdministratorCoreService
　　VRTSobVeritasEnterpriseAdministratorService
　　VRTSobguiVeritasEnterpriseAdministrator
　　VRTSccgVeritasEnterpriseAdministratorCentralControlGrid
　　VRTSmhVeritasStorageFoundationManagedHostbySymantec
　　VRTSaaVeritasEnterpriseAdministratorActionAgent
　　VRTSsptVeritasSoftwareSupportTools
　　SYMClmaSymantecLicenseInventoryAgent
　　VRTSvxvmVeritasVolumeManagerBinaries
　　VRTSdsaVeritasDatacenterStorageAgent
　　VRTSfsproVeritasFileSystemManagementServicesProvider
　　VRTSvmmanVeritasVolumeManagerManualPages
　　VRTSvmdocVeritasVolumeManagerDocumentation
　　Press[Return]tocontinue:
　　...continued:
　　VRTSdcliVeritasDistributedCommandLineInterface
　　VRTSallocVeritasVolumeManagerIntelligentStorageProvisioning
　　VRTSvmproVeritasVolumeManagerManagementServicesProvider
　　VRTSddlprVeritasDeviceDiscoveryLayerServicesProvider
　　VRTSvrproVeritasVolumeReplicatorClientExtensionandProviderfor
　　VeritasEnterpriseAdministrator
　　VRTSvcsvrVeritasClusterServerAgentsforVVR
　　VRTSjreVeritasJavaRuntimeEnvironmentRedistribution
　　VRTSjre15VeritasJavaRuntimeEnvironmentRedistribution
　　VRTSwebVeritasJavaWebServer
　　VRTSvrwVeritasVolumeReplicatorWebConsole
　　VRTSvrdocVeritasVolumeReplicatorDocumentation
　　Press[Return]tocontinue:
　　CheckingforanyAPdriverissuesonlxsfrac02...................................None
　　AcopyofapreviousVxVMconfigurationispresentonthesystemlxsfrac02.
　　DoyouwanttorestoreandreusethepreviousVxVMconfigurationofsystemlxsfrac02[y,n,q,?](y)n
　　VeritasVolumeReplicator5.0InstallationProgram
　　InstallingVVR:100%■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
　　Installationcompletedsuccessfullyonallsystems
　　ItisoptionaltoconfigureVVRnow.IfyouchoosetoconfigureVVRlater,youcaneitherdosomanually,orruntheinstallvvr-configurecommand.Theproductinstallationscriptscanbefoundin/opt/VRTS/installdirectory
　　AreyoureadytoconfigureVVR?[y,n,q](y)
　　Theenclosure-basednamingschemeisafeatureofVeritasVolumeManager.Itallowsonetoreferencedisksusingasymbolicnamethatismoremeaningfulthantheoperatingsystem'snormaldeviceaccessname.Thissymbolicnameistypicallyderivedfromthearrayname.
　　Doyouwanttosetuptheenclosure-basednamingscheme?[y,n,q,?](n)y
　　VeritasVolumeReplicator5.0InstallationProgram
　　VeritasVolumeManagerdefaultdiskgroupnameconfiguration:
　　ManyVeritasVolumeManagercommandsaffectthecontentsorconfigurationofadiskgroup.Suchcommandsrequirethattheuserspecifyadiskgroup.Thisisaccomplishedbyusingthe-goptionofacommandorsettingtheVXVM_DEFAULTDGenvironmentvariable.Analternativetothesetwomethodsforsomecommandsistoconfigurethenameofthedefaultdiskgroupofasystem.
　　Note:ThedefaultdiskgroupfeatureisnotavailablewiththeDCLIvxadm(1M)andvxquery(1M)commands.Whenusingthesecommands,arequireddiskgroupmustbeexplicitlyidentifiedusingthe-goption.
　　Doyouwanttosetupadefaultdiskgroupforeachsystem?[y,n,q,?](y)n
　　VeritasVolumeReplicator5.0InstallationProgram
　　FollowingarethedefaultportsthatwillbeusedbyVVRonlxsfrac02:
　　PortforVVRheartbeatcommunication:4145
　　Portforvradminddaemon:8199
　　Portforvxrsyncddaemon:8989
　　Portsfordatareplication:Anonymous-Ports
　　TheportsindicatedforVVRheartbeatsandvradmindareIANAassigned.
　　TheportsettingsshouldbeidenticalforsystemsthatwillbepartofthesameReplicatedDataSet.Theyshouldalsobeidenticalforallthesystemsinacluster.
　　DoyouwanttochangeanyoftheVVRportsonlxsfrac02?[y,n,q](n)
　　VeritasVolumeReplicator5.0InstallationProgram
　　VVRStatisticsCollectionTool
　　TheVVRadministrativedaemonvradmindcancollectandmaintainvarious
　　statisticswhicharehelpfulinsolvingVVRperformanceissues.This
　　collectioncanbetunedusingafewtunableslikethefrequencyfor
　　gatheringthestatisticsandthenumberofdaysforwhichthecollected
　　statisticsshouldbepreserved,afterwhichtheearlierstatisticsare
　　automaticallydeleted.
　　ThefrequencyofVVRstatisticscollectiononlxsfrac02issettoper10seconds.
　　DoyouwanttochangethefrequencyofVVRstatisticscollectiononlxsfrac02?[y,n,q](n)
　　ThemaximumnumberofdaysforwhichVVRstatisticscanberetainedissetto3onlxsfrac02
　　DoyouwanttochangethemaximumnumberofdaysforretainingVVRstatisticsonlxsfrac02?[y,n,q](n)
　　VeritasVolumeReplicator5.0InstallationProgram
　　ConfigurationofVVRtunables(Fortheadvanceduser)
　　DoyouwanttoviewormodifyVVRtunablesonlxsfrac02?[y,n,q,?](n)
　　VeritasVolumeReplicator5.0InstallationProgram
　　VerifytheinstallsystemsFullyQualifiedHostnames.
　　Queryingfullyqualifieddomainnameofhost"lxsfrac02".............................fail
　　Press[Return]tocontinue:
　　UnabletofindFQHNforlxsfrac02!
　　Enterthefullyqualifiedhostnameof"lxsfrac02"or'QUIT'toquitinstall.
　　Enterthefullyqualifiedhostname:lxsfrac02
　　VeritasVolumeReplicator5.0InstallationProgram
　　Choosehowthisinstallwillbemanaged.
　　Thisproductcanconfiguredoneofthetwofollowingways:
　　*StorageFoundationManagementServermanagedhost(Recommended)
　　*Standalonehost
　　Pre-requisitesforStorageFoundationManagementServermanagedhost:
　　*AStorageFoundationManagementServer(SFMS)isconfigured
　　*SFMSshouldbecurrentlyrunningandfullyoperational.
　　*AuthenticationBrokerthatisusedbySFMSshouldberunning.
　　Thefollowinginformationwouldberequestedduringconfiguration:
　　*ThehostnameoftheSFMS
　　*PreviouslysetSFMSagentaccountpassword
　　Therearenopre-requisitesfordeployingasastandalonehost.
　　EnablingStorageFoundationManagementServermanagementsimplifiesandimprovesmanagementofthecomplexdatacenter
　　resources,reducingplannedandunplanneddowntime.
　　EnableStorageFoundationManagementServerManagement?[y,n,q](y)n
　　VeritasVolumeReplicator5.0InstallationProgram
　　VerifytheinstallsystemsFullyQualifiedHostnames.
　　ConfiguringVEAinSTANDALONEmodeon"lxsfrac02".....................................ok
　　Configuringgridnodeon"lxsfrac02"...................................................ok
　　Registeringgridnodeon"lxsfrac02"...................................................ok
　　Configuringactionagenton"lxsfrac02"................................................ok
　　Registeringactionagenton"lxsfrac02"................................................ok
　　RegisteringStorageAgenton"lxsfrac02"...............................................ok
　　DoyouwanttostartVeritasVolumeReplicatorprocessesnow?[y,n,q](y)
　　VeritasVolumeReplicator5.0InstallationProgram
　　StartingVVR:100%■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
　　Startupcompletedsuccessfullyonallsystems
　　Youdeclinedtosetupthenameofthedefaultdiskgroupforlxsfrac02.
　　Installationlogfiles,summaryfile,andresponsefilearesavedat:
　　/opt/VRTS/install/logs/installvvr-mrk46Y
　　ToenableDynamicMulti-Pathing(DMP),MPxIOmustbedisabled.RefertotheStorageFoundationReleaseNotesforfurtherdetailsondisablingMPxIO.
　　检查vradmindeamon：
　　root@lxsfrac02#ps-ef|grepvrad|grep-vgrep
　　root98081016:24:47?0:00/usr/sbin/vradmind
　　安装VeritasFileSystem：安装过程略
　　root@lxsfrac02#cdfile_system/
　　root@lxsfrac02#ls-l
　　total22
　　-rw-r--r--1rootroot476Dec152006copyright
　　drwxrwxr-x2rootroot512Jun2110:12docs
　　-rwxr-xr-x1rootroot2283Apr142007installfs
　　drwxrwxr-x3rootroot1024Jun2110:12pkgs
　　drwxrwxr-x2rootroot512Jun2110:12release_notes
　　drwxrwxr-x3rootroot512Jun2110:12scripts
　　-rwxr-xr-x1rootroot2283Apr142007uninstallfs
　　root@lxsfrac02#./installfslxsfrac02