Oracle+RAC10g+R2+on+HP+new.docx
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Oracle+RAC10g+R2+on+HP+new.docx
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Oracle+RAC10g+R2+on+HP+new
OracleRAC10gR2onHP-UX
1.Aimofthisdocument
Alldescribedscenariosarebasedona2nodecluster,node1referredtoas'ksc'andnode2as'schalke'.
Inthispaper,weusethefollowinglogic:
ksc#
schalke$
ksc/schalke#
ThisdocumentshouldbeusedinconjunctionwiththefollowingOracledocumentation:
B25292-02Oracle®DatabaseReleaseNotes10gRelease2(10.2)forHP-UXItanium
B19067-04Oracle®DatabaseReleaseNotes10gRelease2(10.2)forHP-UXPA-RISC(64-Bit)
B14202-04OracleClusterwareandOracleRealApplicationClustersInstallationandConfigurationGuideforhpHP-UX
ItalsoincludesmaterialfromHPServiceguard+RAC10gpaperswrittenbyACSLlabswhichareavailableHPinternallyat
2.KeyNewFeaturesforRAC10gonHP-UX
2.1.OracleClusterware
NewwithRAC10g,OracleincludesitsownClusterwareandpackagemanagementsolutionwiththedatabaseproduct.TheOracleClusterwareconsistsof
●OracleClusterSynchronizationServices(CSS)toprovideclustermanagementfunctionality
●OracleClusterReadyServices(CRS)supportservicesandworkloadmanagementandhelptomaintainthecontinuousavailabilityoftheservices.CRSalsomanagesresourcessuchasthevirtualIP(VIP)addressforthenodeandtheglobalservicesdaemon.
●EventManagement(EVM)publisheseventsgeneratedbyCRS
ThisOracleClusterwareisavailableonallvariousOracleRACplatformsandbasedontheHPTruClusterproductwhichOraclelicensedacoupleofyearsago.
CustomerscannowdeployOracleRACclusterswithoutanyadditional3rdpartyclusterwareproductssuchasSG/SGeRAC.However,customersmightwanttocontinuetouseSG/SGeRACfortheclustermanagement(e.g.tomakeyourcompleteclusterhighavailableincluding3rdpartyapplication,interconnect,etc.).InthiscaseOracleClusterwareinteractswiththeSG/SGeRACtocoordinateclustermembershipinformation.
NewFeaturesforOracleClusterwarewithRAC10gR2:
●Oracle10gR2comeswithnewClusterVerificationUtilitythatyoucanusetocheckwhetherornotyourclusterisproperlyconfigured,toavoidinstallationfailures,andtoavoiddatabasecreationfailures.
●With10gR2,OracleClusterwareprovidesthepossibilitytomirrortheOracleClusterRegistry(OCR)file,enhancingclusterreliability.
●With10gR2,CSShasbeenmodifiedtoallowyoutoconfiguremultiplevotingdisks.InRAC10gR1,youcouldconfigureonlyonevotingdisk.Byenablingmultiplevotingdiskconfiguration,theredundantvotingdisksallowyoutoconfigureaRACdatabasewithmultiplevotingdisksonindependentsharedphysicaldisks.
●WithOracle10gR2,inaddition,whilecontinuingtoberequiredforRACdatabases,OracleClusterwareisalsoavailableforusewithsingle-instancedatabasesandapplicationsthatyoudeployonclusters.TheAPIlibrariesrequiredforusewithsingle-instancedatabasesareprovidedwiththeOracleClientinstallationmedia.
2.2.OracleAutomaticStorageManagement
OracleAutomaticStorageManagement(ASM)isanewfeaturethathasbeintroducedinOracleDatabase10gtosimplifythestorageofOracledata.ASMvirtualizesthedatabasestorageintodiskgroups.TheDBAisabletomanageasmallsetofdiskgroupsandASMautomatestheplacementofthedatabasefileswithinthosediskgroups.
InsummaryASMdoesprovidethefollowingfunctionality:
●Managesgroupsofdisks,calleddiskgroups.
●Providesthreemirroringoptionsforprotectionagainstdiskfailure:
none,two-way,andthree-waymirroring.
●Spreadsdataevenlyacrossallavailablestorageresourcestooptimizeperformanceandutilization.
●EnablestheDBAtochangethestorageconfigurationwithouthavingtotakethedatabaseoffline.
●Automaticallyrebalancesfilesacrossthediskgroupafterdiskshavebeenaddedordropped.
NewFeaturesforOracleASMwith10gR2:
●ASMCommand-LineUtilityforASMfileadministration:
$asmcmdhelp
●Oracle10gR2supportsinstallationofAutomaticStorageManagementinaseparateASMhomedirectory.
●SupportsinteroperabilityforallversionsofASMandDatabaseinstancesstartingwithRAC10gR1.ThisallowstheASMinstanceandDBinstancetobeupgradedindependently:
●ASMmigrationutilitywithEnterpriseManagerGridControlGUI
2.3.HPServiceguardClusterFileSystemforOracleRAC
InSeptember2005,HPannouncedtheavailabilityofthenewHPServiceguardStorageManagementSuitethatoffersenhanceddatabase,cluster,andperformancemanagementcapabilitiesforHP-UX11ienvironmentsbyintegratingHPServiceguardandSymantecVERITASStorageFoundation.ThisnewproductsuiteisideallysuitedtocustomerswhoneedthehighestlevelsofavailabilityandsuperiorOracledatabaseperformanceorwhohaveanapplicationthatwouldbenefitfromaclusteredfilesystem.
TheHPServiceguardClusterFileSystemforOracleRACSuiteincludesthefollowingtechnologiesfromSymantecVERITASStorageFoundation:
●ClusterFileSystem(CFS)—providesexcellentI/OperformanceandsimplifiestheinstallationandongoingmanagementofaRACdatabase
●Advancedvolumemanagementandfilesystem(AVMFS)capabilities—offersdynamicmultipathing,databasetablespacegrowth,andhotrelocationoffailedredundantstorage.Italsoprovidesavarietyofonlineoptions,includingstoragereconfigurationandvolumeandfilesystemcreationandresizing.
●OracleDiskManager(ODM)—deliversalmostrawperformancerunningdirectI/Obycachingfrequentlyaccesseddata
●Qualityofstorageservice(QoSS)—enablesadministratorstosetpoliciesthatsegmentcompanydatabasedonvariouscharacteristicsandassignthedatatoappropriateclassesofstorageovertime
●FlashSnap—helpsdatabaseadministratorseasilyestablishadatabaseclone,aduplicatedatabaseonasecondaryhostforoff-hostprocessing
ThisHPServiceguardStorageManagementSuiteisofferedandsupporteddirectlyfromHPforasinglepointofcontactforallyoursupportneeds.
HPProductNumber:
T2777BA(HPServiceguardCFSforRACLTU).
3.SupportedConfigurationswithRAC10gonHP-UX
Customersdohaveavarietyofchoiceswithregardstotheinstallationandset-upofOracleRealApplicationClusters10gontheHP-UXplatform.
Firstcustomersneedtomakeadecisionwithregardstotheunderlyingclustersoftware.CustomershavethepossibilitytodeploytheirRACclusteronlywithOracleClusterware.Alternatively,customersmightwanttocontinuetouseHPServiceguard&HPServiceguardExtensionforRAC(SGeRAC)fortheclustermanagement.InthiscaseOracle’sCSSinteractswithHPSG/SGeRACtocoordinateclustermembershipinformation.
Forstoragemanagement,customershavethechoicetouseOracleASM,HP'sClusterFile
SystemsorRAWDevices.Pleasenote,forRACwithStandardEditioninstallations,OraclemandatesthattheOracledatamustbeplacedunderASMcontrol.
ThefigurebelowillustratesthesupportedconfigurationswithOracleRAC10gR2onHP-UX.
ThefollowingtableshowsthestorageoptionssupportedforstoringOracleClusterwarefiles,Oracledatabasefiles,andOracledatabaserecoveryfiles.Oracledatabasefilesincludedatafiles,controlfiles,redologfiles,theserverparameterfile,andthepasswordfile.OracleClusterwarefilesincludeOracleClusterRegistry(OCR)andVotingdisk.OracleRecoveryfilesincludearchivelogfiles.
4.GeneralSystemInstallationRequirements
4.1.HardwareRequirements
●atleast1GBofphysicalRAM.Usethefollowingcommandtoverifytheamountofmemoryinstalledonyoursystem:
⏹#/usr/contrib/bin/machinfo|grep-iMemoryor
⏹#/usr/sbin/dmesg|grep"Physical:
"
●SwapspaceequivalenttothemultipleoftheavailableRAM,asindicatedhere:
⏹IfRAMbetween1GBand2GB,thenswapspacerequiredis1.5timesthesizeofRAM
⏹IfRAM>2GB,thenswapspacerequiredisequaltothesizeofRAM
⏹Usethefollowingcommandtodeterminetheamountofswapspaceinstalledonyoursystem:
#/usr/sbin/swapinfo–a
●400MBofdiskspaceinthe/tmpdirectory.Todeterminetheamountofdiskspaceavailableinthe/tmpdirectory,enterthefollowingcommand:
#bdf/tmp
⏹Ifthereislessthan400MBofdiskspaceavailableinthe/tmpdirectoryextendthefilesystemorsettheTEMPandTMPDIRenvironmentvariableswhensettingtheoracleuser'senvironment.Thisenvironmentvariablescanbeusedtooverride/tmp.:
$exportTEMP=/directory
$exportTMPDIR=/directory
●4GBofdiskspacefortheOraclesoftware.Youcandeterminetheamountoffreediskspaceonthesystemusing
#bdf–k
●1.2GBofdiskspaceforapreconfigureddatabasethatusesfilesystemstorage(optional)
●OperatingSystem:
HP-UX11.23(Itanium2),11.23(PA-RISC),11.11(PA-RISC).Todetermineifyouhavea64-bitconfigurationenterthefollowingcommand:
#/bin/getconfKERNEL_BITS
●TodeterminewhichversionofHP-UXisinstalled,enterthefollowingcommand:
#uname–a
●AsnycI/OisrequiredforOracleonRAWdevicesandconfiguredonHP-UX11.23bydefault.Youcancheckifyouhavethefollowingfile:
#ll/dev/async
#crw-rw-rw-1binbin1010x000000Jun909:
38/dev/async
●IfyouwanttouseOracleonRAWdevicesandAsyncI/Oisnotconfigured,then
⏹Createthe/dev/asynccharacterdevice
#/sbin/mknod/dev/asyncc1010x0
#chownoracle:
dba/dev/async
#chmod660/dev/async
⏹ConfiguretheasyncdriverinthekernelusingSAM
=>KernelConfiguration
=>Kernel
=>thedriver
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