Getting the Most Out of Your DB2 Investment

GettingtheMostoutofYourDB2Investment

RonColmone

Mainframe

CATechnologiesSr PrincipalSoftwareArchitectMFX14E

@RonColmone#CAWorld

2 ©2015CA.ALLRIGHTSRESERVED.@CAWORLD #CAWORLD

Abstract

ThissessionwillfocusonanewmainframeDB2®toolscustomer

oranon-DB2customerinterestedinDB2solutions fromCA

Technologies andhelping themunderstand thevalue

proposition andthereal-lifeusecases(administration, change

management,performanceoptimization,monitoring, etc.)

whereDB2toolshelpcustomersreduceoperational costs,

reducerisksassociatedwithdowntime/availability,improve

servicelevelsandimproveuserproductivity.

Ron Colmone

CATechnologiesSr Principal SoftwareArchitect


AgendaCLONINGUSINGCARC/MIGRATOR™FORDB2FORZ/OS

DB2REALTIMESTATS(RTS)FORAUTOMATION

TIPSANDHINTSWITHTHETOOLS

PACKAGECOMPAREINTEGRATIONWITHCHANGECONTROL

DETECTORCOLLECTIONANDREPORTINGPROFILES

MANAGEDB2ANALYTICSACCELERATOR(IDAA)

1

2

3

4

6

7

CARC/QUERY®FORDB2FORZ/OSHDDLLINE COMMAND5


HowdoIdeliveraflawlessexperienceeverytimeanapplicationtouchesthemainframe?

Intheapplicationeconomyit’sallaboutyourcustomers.Youneedtothinkaboutyourmainframereframed.

Connectmobile-to-mainframeapplications

Createmainframeinfrastructureflexibility

forthefuture

Unleashthepowerofdataonthemainframe


UseCase:CloningusingRC/Migrator(Merger)


CARC/Migrator(Merger)

§ MoveorCopyTable/IndexSpacesfromoneSubsystemtoanother(couldbesameSSID)

§ SharedDASDrequiredbetweensubsystems

§ Norequirementtounloadandreloadtables

§ CopytheVSAMdatasetsfromsourcesubsystemtotargetincludingcatalogstatistics

§ Flashcopy supportedtoeliminateoutageonsourcesystem

§ OBIDscanbereservedortranslatedinplaceontargetsystem

CloningDatausingCARC/Migrator– MStrategy


CARC/Migrator(Merger)

§ CustomerinitiallyusedUnload/LoadMigrationprocesstomovedatafromProductiontoTest

§ SecondphasewastoremoveunnecessaryIndexesfromthemoveprocess

§ ThenconvertedMigrationstrategytouseRC/Merger– largereductioninprocessingtime

§ ImplementedFlashCopy Support(RC/MergerR19feature)

Customercasestudy


CARC/Migrator(Merger)Customerstatisticsmoving fromstandardUnload/Loadmethod toRC/Merger

Note:Cloningprocessisnowhandling 2-3x

thedataoriginallyprocessed

UsingUnload/LoadProcessing

Removedsomeunnecessaryindexes

Converted toRC/Mergerprocess

ImplementedSNAPSHOTwithRC/Merger


CARC/Migrator(Merger)CloningDatausingCARC/Migrator– MStrategy

SpecifyRC/MergerMove/CopyAnalysisStrategyOptions.

ReserveOBIDS=YwillremoveneedtotranslateOBIDsunlesscollision.

SourceExecutionofReadOnlyensuresconsistentcopy.



GlobalChangesallowobjectattributestobealteredontargetsystem.

CopySourceTablespaces toTargetTablespaces.



RC/MergerwillallocateTargetVSAMdatasetsifrequired.



CallRC/MergertoReserveOBIDsifavailable.


UseCase:DB2RealTimeStatistics(RTS)forAutomation


DB2RealTimeStatsforAutomationDatabaseAnalyzer– ObjectSelectionusingRTS

§ DB2ObjectselectionbasedonRTSusingReorgbestpracticeselectioncriteria(DSNACCOXlike)



§ ExecutionofPDAExtractProceduretogenerateOnlineReorgsJOBsforselectedTablespacestiedtoObjectSelectionProfile



§ OnlineReorgJCLgeneratedintotargetlibraryforeachobjectselectedbasedonbestpracticeselectioncriteria.


UseCase:PackageCompareIntegrationWithChangeControl


PPAPackageCompareIntegrationWithChangeControlIdentifyingAccessPathChanges


PPAPackageCompareIntegrationWithChangeControl

§ AddBatchProcessstepstoChangeControlprocessinordertodetectSQLperformanceimpactduetoSQLchanges

§ CurrentExplainofPackagecanbeusedtocreatetheBaseline

§ FutureExplainwithComparisontoCurrentExplaintodetectimpactofSQLchanges

§ OptionscanbespecifiedtosetThresholdvalueoncostcomparison

CostCompareanalysis



CVCCOPTScontainsoptionsforCostComparereportincludingthresholds.

AddJCLsteptoChangeControlProcesstoComparebaselinetofutureexplaininorder toanalyzeaccesspathchangesofpackage.



PackagecompareofOldversusNewpackagecompareresultedin26improvedSQLstatements.



CostofSQLstatementwentfrom60to1(ms)sinceAccesstypechangedfromTS_SCNtoIXDATA.


PPA– NewR19FeaturetoSimplifyCompareProcess

§ RebindCompareAnalysis(RCA)commandtosimplifycomparecurrent/futureaccesspathsforapackage

§ IssuesCurrentExplainofPackage,followedbyFutureExplain

§ ComparesFuturetoCurrentexplainresultsandgeneratestheRebindCompareAnalysisreport

§ ShowonlySQLstatementswhereaccesspathhaschanged

§ RCAcanbeissuedfrommostreportswhereaPackagelineexists

RebindCompareAnalysisReport


PPARebindCompareAnalysis(RCA)

RCALinecommandcanbeexecutedonmostreportscontainingaPackagedetailline.Current/FutureexplainsfollowingbyComparewithRebindAnalysisReportforSQLwithAccessPathchanges.


PPARebindCompareAnalysis(RCA)

RebindCompareAnalysisreportshowsacostimprovementfrom44to1(ms)whenrebindingpackageonDB2V10due toColFnE=R(ColumnFunctionevaluatedatdataretrieval)


UseCase:DetectorReportingandCollectionProfileUsage


DetectorReportingandCollectionProfileUsageDefineapplicationgroupsusing reporting profiles

Application profilescanbedefined forcollectionsofPLANs,Packages,CorrID,andUserswhichmakeupanapplication.

In thisexample,RTPPLNMNandRTPREGarethecollectionofPLANnamesthatarespecifiedin theprofile thatmakeoftheApplication RTPAPPL.


DetectorReportingProfileUsageViewingDB2activitybyApplicationReportingProfile

ViewBy‘Prof ’(option F)providesanaggregateviewofallactivityfortheselectedintervalsbyallPLANsdefined inthespecificapplicationprofiles.

In thisexample,RTPAPPL istheapplication IDassociatedwiththeapplicationprofile thataggregatesthecollectionofPLANSthatmakeup theapplication. Allother activityintheintervalisrepresentedby‘*NoProfile*’.


DetectorReportingProfileUsageDrilldownintoactivitywithintheselectedApplication

Byselectinganapplicationprofilewithan“S”linecommandon theViewByProfiledisplay,activitycanthenbedisplayedforeachPLAN(orprofiletype)individuallywithin theApplication.

FurtherDrilldowntoPrograms,DynamicSQL,orotherKeyscanthenbeselected.


UseCase:CARC/QueryHDDLLineCommand


CARC/QueryHDDLLineCommand

§ HDDLLinecommandonaDB2objectwillgenerateDDLfortheobjectalongwithitsParentandDependentObjects.

GenerateDDLforspecifiedobjectalongwithParentandDependent Objects


UseCase:ManageDB2AnalyticsAccelerator


ManageDB2AnalyticsAcceleratorUseCARC/QueryforIDAAadministration

AbilitytoStart/Stop/DisplayandPINGAcceleratorfromRC/QAcceleratorList



RC/QAcceleratorTablelistreportprovidestableleveladministrationofyourIDAA



IDAATablelevelfunctionsareavailabletoDefine,Alter,Remove,Load,etc.



§ LoadDB2TableintoIDAA– RC/QALOADCommand

– CanloadrangeofpartitionsorentireTable

– UsesIDAALoaderutility

– MostcommandssuchasALOADareavailableusingBatchProcessorScripts


DB2AnalyticsAcceleratorCASYSVIEW®PerformanceManagementforDB2

§ Subsystemstatistics:AcceleratorDetails– SYSACDTL:

AcceleratorDetails– HSACCDTL/

HSUACDTL:AcceleratorServerDetails/Summary


TipsandHintsWithDB2Tools


DB2Tools

§ “?”– PrimaryandLinecommands

§ Freeze/Unfreeze/Reportcommands

§ QFILEandQPRINTcommands

§ ALLprimarycommandinCARC/Query

§ EQF– ExtendedQueryFacility– TheSQLLinecommand

§ RC/QueryUserDefinedLinecommands

Tips,HintsandUsefulstuff


DB2Tools– TipsUsingtheISPFInterfaceUseof“?”foravailablePanelandLineCommands

Enter“?”inPrimaryorLinecommandfieldtogetalistofavailable

commands


DB2Tools– TipsUsingtheISPFInterfaceFreeze,UnfreezeandReportCommands

§ CreateCustomizableReportformatsusingtheReportCommand

§ Freeze/Unfreezecommandsallowforfixingcolumnstoscrollleft/right

§ QPRINT/QFILEcommandstoprint/savereport


DB2Tools– TipsUsingtheISPFInterfaceALLPrimarycommandinCARC/Query

The“ALL”primarycommandwillpopulateallobjectrowswiththeassociatedLinecommandtoenableaquickmethodofexecutingaspecificcommandforallobject.Linecommandoptionscanthenbeappliedtoallobjects.


DB2Tools– TipsUsingtheISPFInterfaceEQF– ExtendedQueryFacility

Anyscreenthatcontainsa‘Where=>’fieldcaninvoketheEQFSQLQueryEditor.

Y– CreateorUpdateEQFN– Don’tinvokeEQFS– ExecuteExtendedQuery


DB2Tools– TipsUsingtheISPFInterfaceEQF– ExtendedQueryFacility

Additional PredicatevaluesandORDERBYcolumnscanbeaddedtothebasequerybeingexecutedwithintheDB2Tools interface.


DB2Tools– TipsUsingtheISPFInterfaceCARC/Query– UserDefinedcommands

§ UserdefinedRC/QuerycommandsaredefinedviaUSALINEandidentifytheObjecttypetheyareavailabletobeusedon.

§ UsercommandscanbewritteninREXXorasacompiledprogramandLINKEDintothePTLLINELoadModule

USMLINE1 'USER-DEFINED LINE COMMANDS' USMLINE2 LISTCAT,(TS,IX,T,I), *

'IDCAMS Listcat of tablespace/indexspace' USMLINE2 FLDSTAT,(C), *

'Most frequent index column values' USMLINE2 EX,(T,V,C,S,U,P,I,A,VC,SG,DB,TS,BP,DR,CL,PK,DT,R,RI, *

CD,SQ,H,U,SY,L,SC,TG,AC,PM), *'Execute Clist or REXX Exec '

USMLINE2 TESTEX1,(T,V,C,S,U,P,I,A,VC,DT), *'SAMPLE REXX EXEC ',TYPE=R


DB2Tools– TipsUsingtheISPFInterfaceCARC/Query– UserDefinedcommands

AvailableUserdefinedcommandsforspecifiedDB2ObjectTypearelistedinthePanelwhenenteringa‘?’ Linecommand.

CommandcanbeSelectedorenteredasLinecommand.

SampleREXXcommandisprovided asexample.


ParticipateinCA’sDB2/IMSManagementCommunity!!communities.ca.com/community/ca-database-management-for-db2-and-ims


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