Tools for Monitoring and Tuning your CA IDMS/DC System

World®’16

ToolsforMonitoringandTuningYourCAIDMS™/DCSystemJohnSiraco – Director,SoftwareEngineering – CATechnologies

MFX70E

MAINFRAMEANDWORKLOADAUTOMATION

Abstract

ThishighleveloverviewfocusesontoolsthatcanbeusedtomonitorandtuneCAIDMS/DBandCAIDMS/DCsystemstomeetSLAsandotherperformancegoals.ThissessionwillcoversomeofthebenefitsofCAIDMS™PerformanceMonitor,CAMainframeApplicationTuner,andCASYSVIEW®andthevaluetheyprovideinyourenvironment.

JohnSiraco

CATechnologiesDirector,SoftwareEngineering

Agenda

CAIDMSPERFORMANCEMONITOR

CASYSVIEWPERFORMANCEMANAGEMENT

CAMAINFRAMEAPPLICATIONTUNER

CAIDMSPerformanceMonitor

§ RealTimeMonitor– Specificsystem-resourcestatisticsatthetimeoftherequest

§ IntervalMonitor– System-widewaittimestatisticsforaunitoftime– Runbatchreportstotracksystemutilization

§ ApplicationMonitor– Statisticsaboutresourceusagebyprograms,tasks,userids,andlterms– Runbatchreportstotracksystemutilization

§ Capturesanddisplayssnapshotof“current”informationabouttheuseofCAIDMSsystemresources

§ Automaticallyrefreshesthescreenwithupdatedstatisticsbasedontherefreshinterval

§ Onlinecomponentonly– OnlineTaskcode- PMRM

§ IDMSINFOaddressspace– Runsinaseparateaddressspace– Usescrossmemoryservicestoprovideremotemonitoringfacilities

fromany/toanyIDMSsystemrunningontheLPAR– NeedstobestartedseparatelyfromtheCV– Mustbeactivetouseremotemonitoring– OnlyavailableonZ/OSplatform

(PMRM)RemoteMonitoring

§ TracksinformationabouttheuseofCAIDMSsystemresourcesoveranintervaloftime

§ OnlinecomponentandBatchreports– OnlineTaskcode- PMIM

Interval Monitor

§ TrackstheuseofCAIDMSapplicationstatistics– MusthaveSTATISTICSTRANSACTIONONatsystemgenerationtime

§ DC275912:TASKSTATISTICSNOTGENNED

§ OnlinecomponentandBatchReports– OnlineTaskcode– PMAM

ApplicationMonitor

RealTimeMonitoring(PMRM)

AnalysisOnline(PMIM)

AnalysisOnline(PMAM)

AnalysisPMAMReports

AnalysisPMIMReports

WaitsonJournalI/O.Journalsarethebiggestbottleneckinmostonlinesystems.

Waitson“PDTECB”isaredflag!

PostProcessMonitoring(PMRM)

Thesenumberslookhighbasedontheworkloadwearepushingthrough.Needstobeinvestigated.

Thereisnoexplicitscratchrequestprocessingwithinourapplications.OneormoreSYSGENoptionsaremostlikelycausingthescratchwork.

WaitsonRPL.MostlikelycausedbyunderallocationofRPLsinSYSGEN.

ForcedWrite.AbufferhadtobeforcedoutofthesystemtoallowforcompletionofanotherI/O.

OverlaysandWaitsshouldbezero.Highnumberof“PagesLoaded”and“LoadCount”forthenumberofprogramsusedinourtest.

PostProcessMonitoring(PMIM)

PostProcessMonitoring(PMAReport1)

PostProcessMonitoring(PMIReport2)

CAIDMSSYSVIEWPerformanceManagement

CASYSVIEW

§ IncludesanoptiontomonitorCAIDMSsystems

§ HasCAIDMSSpecificdisplays

§ GetsdatafromIDMSINFOaddressspace

§ MonitorssameinformationastheIDMSRealTimePerformanceMonitor(PMRM)

CASYSVIEW

CAMainframeApplicationTuner

§ Monitors

§ Taskstatus/waits

§ TCB/SRBusage

§ Datasetusage

§ Delays(IDMS/DML)

§ EnablesyoutopinpointbottlenecksduetoCAIDMSrequests

§ EasilyseepercentagesofCAIDMSsamplestakenduringthemonitoredperiod

DisplayCAIDMSDelays

§ Module– NameoftheprogramrequestingCAIDMSDB/DCservices,when

known,orthenameoftheprograminvokedbyspecifyingthetaskcode

§ Offset– Relativeaddresswithinthemoduletowhichcontrolwillbereturned

uponcompletionoftheCAIDMSDB/DCservicerequest

Delays

§ Status– StatusoftheCAIDMSDB/DCservicerequest,whetheritiswaiting

forresources,readytoexecute,orexecuting

§ Wait– IdentifieroftheECBonwhichthetaskiswaiting.TheECBcanbe

internalasdefinedbyCAIDMSmacro#ECBDSorexternalasdefinedbyCAIDMSmacro#ELEDS.Note:ScrollrighttoseethisfieldontheCAIDMSDelayspanel

Delays

§ EnablesyoutopinpointbottlenecksduetorequestsfromDMLstatements

§ SeecurrentormostrecentDMLstatementineffectwhenCAMATdetectedCAIDMSwaitingforresources

DisplayDMLDelays

§ DMLVerb– CommandinaDMLstatementrequestingadatamanipulation

operation– FINDsareconvertedtoOBTAINs,asappropriate

§ DMLTarget– DMLstatementobjectoftherequestedoperation(suchasarecord

orsetname)

§ DMLQualifier– DMLstatementobjectqualifyingthetarget(suchasanareaorset

namewhenthetargetisarecordname)

DMLDelays

DiagnosingProblems:CAMainframeApplicationTuner

§ SelectanIDMSsystemtomonitor.

§ SelectingSUP$TE99inthisexample.

§ CAMATmonitorsandgathersdata.Attheendofthemonitoringcycleweselectthe“AL”AnalyzeAlloption.Sampledataisloaded.

§ LookingattheIDMSdelayspanelweselectatask(OptionDforDetail)withafairlyhighpercentageofwaittime.

§ Detaildisplayshowswemaybehavingabufferingproblemasthistaskiswaitingonabuffer“BCRECB”

§ Batchreportsarethenselectedandrun.LookingatthebatchreportswecanseetherearemultipletaskswaitingforBuffers.TheyarewaitingonBCRECB.

Summary

§ CAIDMSPerformanceMonitor– RealtimeMonitor– IntervalMonitor– ApplicationMonitor

§ CASYSVIEWPerformanceManagement

§ CAMainframeApplicationTuner

MainframeandWorkloadAutomation

FormoreinformationonMainframeandWorkloadAutomation,pleasevisit:http://cainc.to/9GQ2JI

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Questions?

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Thankyou.

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Tools for Monitoring and Tuning your CA IDMS/DC System

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