对Oracle数据库进行容灾

　2008-12-16 13:02:33　来源：WEB开发网　　　

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

对Oracle数据库进行容灾

在同步模式下VVR的数据复制和数据流向

对Oracle数据库进行容灾

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