Oracle英文版培訓課件之Grid Control：les11Monitoring Your Data Center

MonitoringYourDataCenterObjectivesAftercompletingthislesson,youshouldbeableto:Identifyout-of-boxmonitoringfeaturesChangemetricsettingsCreateandapplymonitoringtemplatesUsenotificationsCreatenotificationrulesCreateUser-DefinedMetrics(UDMs)UseblackoutsOut-of-BoxMonitoringYoucanusethefollowingout-of-boxmonitoringfeatures:PredefinedmetricsforallmonitoredtargetsHistoricalcollectionsfortrendanalysisandreportingAccesstoreal-timeperformancechartsE-mailnotificationforcriticalalertsMetricThresholdsMetricthresholdsarethevaluesthatmarktheboundaryforthemetric.Ifthemetriccrossesthisvalue,analertistriggered.Youcansetthresholdvaluesforthefollowing:Warningthreshold:Theareaisstillfunctional,butneedsattention.Criticalthreshold:Thisisindicativeofimminentproblemsandrequiresimmediateaction.ChangingMetricThresholdsChangingCollectionSchedulesCorrectiveActionsCorrectiveactionsareawaytospecifyanautomatedresponsetoanalert.Youcandefinedifferentcorrectiveactionsforwarningandcriticalalerts.Bydefault,thecorrectiveactiontaskrunsonthetargetonwhichthealertistriggered.Youcanalsodefinemultitaskcorrectiveactionsthatrunagainstothertargets.DefiningCorrectiveActionsFromtheMetricandPolicySettingspage,clicktheEditiconforthemetricforwhichyouwanttodefinethecorrectiveaction.ClicktheAddbuttontodefineacorrectiveaction.Selectfromdifferenttypesofcorrectiveactionsthatyoucandefine.ClicktheContinuebuttonafterselectingthecorrectiveactiontype.OntheGeneralpage,giveapropernameforcorrectiveaction.ClicktheParameterstab.DefiningCorrectiveActionsSelectthecommandtype.Enterthecommandorthescriptdependingonthecommandtype.DefiningCorrectiveActionsClicktheCredentialtab.Specifythepreferredcredentials.ClickContinue.TriviaWhatminimumtarget-levelprivilegesdoyouneedtohavetoperformanymetricthresholdchanges?Options:FULLOPERATORVIEWNoneWhatarethetwodifferenttypesofthresholds?MonitoringTemplatesApplyApplyApplyApplyTemplate1Template2Post-TemplatePre-TemplateTarget1Target2Target3Target1Target2Target3Target4Target4Production

Environment

TargetCreatingMonitoringTemplatesClicktheSetuplinkintheupper-rightcorner.SelectMonitoringTemplatesfromtheleftnavigationbar.ClicktheCreatebutton.Selectthetargetthathasthemonitoringsettingsthatyouwanttouseinthetemplate.Specifyanameforthetemplate.Selectthemetricsandthepolicies,andchangethethresholdsorthecollectionschedules.Applythetemplate.ApplyingMonitoringTemplatesApplyingtemplates:YouneedatleastOPERATORprivilegesonthedestinationtargets.Thetargetcanhavemultipletemplates:“Lastonewins.”O(jiān)nlythosemetricsdefinedinthetemplatewilloverridethemetricsinthedestinationtarget.Thereisnolinkbetweentargetandtemplate.Thetargetcanpreventtemplateoverrideonapermetricbasis.Afterapplyingthetemplate,checkthePendingApplyOperationslink.Check“PastApplyOperations”forhistoryofpasttemplateapplyoperations.ApplyingMonitoringTemplatesOption1:“Applythresholdsettingsformonitoredobjectscommontobothtemplateandtarget”Example:FilesystemSpaceAvailable(%)2636/u310*20*Allothers20*30*/u1CriticalWarningMountPtTargetsettingsafterapplyingtemplate

*Changedvalues

2636/u31121Allothers2131/u1CriticalWarningMountPtDestinationTarget2535/u21020Allothers2030/u1CriticalWarningMountPtTemplateApplyingMonitoringTemplatesOption2:“Duplicatethresholdsettingsontarget”Example:FilesystemSpaceAvailable(%)2535/u2**10*20*Allothers20*30*/u1CriticalWarningMountPtTargetsettingsafterapplyingtemplate

*Changedvalues**Valuesadded/u3dropped

2636/u31121Allothers2131/u1CriticalWarningMountPtDestinationTarget2535/u21020Allothers2030/u1CriticalWarningMountPtTemplateApplyingMonitoringTemplatesOption2:“Duplicatethresholdsettingsontarget”Example:FilesystemSpaceAvailable(%)2535/u2**1121 Allothers20*30*/u1CriticalWarningMountPtTargetsettingsafterapplyingtemplate

*Changedvalues**Valuesadded/u3dropped“AllOthers”isuntouched

2636/u31121Allothers2131/u1CriticalWarningMountPtDestinationTarget2535/u22030/u1CriticalWarningMountPtTemplateUsingNotificationsNotificationsenabletheadministratorstoresolveissuesquicklybynotifyingthemwhenanalertistriggered.Asanadministrator,youmustdefinethefollowingtoreceivenotifications:E-mailaddressesNotificationscheduleNotificationrulesTheSuperAdministratormustsettheSMTPgatewaytousenotifications.NotificationMethodsDefiningE-MailAddressesNotificationScheduleNotificationRulesCreatingNotificationRulesYoucancreateadditionalnotificationrulesandalsoeditorviewtheexistingnotificationsrules.TriviaMatchthefollowing:1.NotificationsA.Enablesyoutodefine

differentwaysforsending

notifications2.NotificationMethodB.Isasetofconditionsthat

determinewhenanotification

occurs3.NotificationScheduleC.Enablestheadministratorsto

resolveissuesquicklybynotifying

themwhenanalertistriggered4.NotificationRulesD.Determineswhoisnotifiedwhen

analertorotherissuesoccurUser-DefinedMetricsUsingUser-DefinedMetrics(UDMs),youcanwidenthescopeofmonitoringtheconditionsthatarespecifictoyourenvironment.TherearetwotypesofUser-DefinedMetrics:OperatingSystem(OS)User-DefinedMetricsSQLUser-DefinedMetricsCreatingOperatingSystemUser-DefinedMetricsYouneedtoperformthefollowingtwostepstocreateOperatingSystemUser-DefinedMetrics:CreateyourOSmonitoringscript.RegisterthescriptasaUser-DefinedMetric.CreatingYourOSMonitoringScriptThescriptcanbewritteninanyscriptinglanguagethatissupportedontheplatformyouaremonitoring.Placethescriptinadirectorywheretheagenthasfullaccessprivilegestoreadandexecute.Thescriptshouldperformthefollowingfunctions:Checkthestatusofthemonitoredobject.Evaluatetheresultsofthestatuscheck.ReturnresultstoGridControlintheproperformat.em_result=<numericvalue>em_message=<messagedescribingscriptresult>RegisteringtheScriptUsingSQLUser-DefinedMetricsSQLUser-DefinedMetrics(SQLUDMs)enableyoutoextendmonitoringofdatabasesbyplugginginyourownSQLqueriestomonitorconditionsthatarespecifictoyourenvironment.Thevaluesreturnedbyyourqueriescanbecomparedagainstthethresholdsthatyouspecify,andalertsaretriggeredwhenthresholdsarecrossed.InOracleEnterpriseManager10gRelease2,SQLUDMshavebeenenhancedinthefollowingways:SQLqueriesforSQLUDMscanreturntwo-column,multirowvalues.Theformatofthealertmessagecanbecustomized.ATestbuttonisprovidedtoenableverificationoftheSQLqueryandcredentials.CreatingSQLUser-DefinedMetricsCreatingSQLUser-DefinedMetricsBlackoutsOracleManagementServicesServersStorageNetworkSoftwareDatabaseASOCSeBizEnterpriseconfigmanagementApplicationprefmanagementPrecisionsystemmonitoringAdministrationInfrastructure(Jobs,Alerts,andsoon.)OracleManagementRepo