1961 no rainclouds here! using cics platform and policies to keep your private cloud healthy

© 2014 IBM Corporation

No rainclouds here! Using CICS Platform and Policies to keep your private cloud healthy

Matthew Webster IBM

Please Note IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s sole discretion.

Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision.

The information mentioned regarding potential future products is not a commitment, promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.

Performance is based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput or performance that any user will experience will vary depending upon many factors, including considerations such as the amount of multiprogramming in the user’s job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve results similar to those stated here.

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Abstract

CICS V5 introduces significant capability to help manage CICS as a private cloud. The Platform definition can monitor the health of shared services and maintain consistency across regions simplifying application deployment while threshold policies can protect production systems against rogue applications by enforcing coding standards throughout the development lifecycle. See how to use these new resources in conjunction with existing facilities including CICS Monitoring and tools like CICS PA to manage and measure the health of your CICS environment. This session will cover recent enhancements to CICS including support for deploying and managing shared services such as TCP/IP connectivity, web services resources and Java runtimes as part of a Platform. Customers using workload management will discover how Application context information can now assist with dynamic routing. We will also describe the new threshold policies.

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Cloud and Tools Sessions

!   Monday •  1699 CICS TS V5.2 Technical Overview

!   Tuesday •  2416 Business value of creating a CICS cloud •  1985 Why talk to your colleagues? •  1961 No rainclouds here !

!   Thursday •  2377 Mainframe isn't too heavy for the cloud

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Topics

!   CICS Platform !   CICS Threshold Policy !   CICS Tools

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CICS Cloud “Toolbox”

!   Artifacts like Platform that can be kept under version control describe what the system should look like

!   A RESTful, batch and online API to help automate deployment and management

!   The CICS Explorer UI for administration integrates the CICS Tools and with source code management

!   Monitoring Data allows you measure resource consumption !   Creating Policy helps you enforce coding standards throughout

the application lifecycle and protect production environments

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CICS PLATFORM

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CICS Cloud Resources

!   Application: •  Entry points: PROGRAM, URIMAP •  Resources: LIBRARY, OSGIBUNDLE, WEBSERVICE, … •  Dependencies: JVMSERVER, PIPELINE, …

!   Binding •  Deployment rules •  Policy •  Resources: URIMAP, … •  Dependencies: TCPIPSERVICE

!   Platform •  Topology •  Policy •  Services: FILE, JVMSERVER, PIPELINE, TCPIPSERVICE

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CICS Explorer: “CICS Cloud” Perspective

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New in CICS TS V5.2: Platform Resources

!   Resources •  FILE •  JVMSERVER (including Liberty) •  TCPIPSERVICE •  PIPELINE (web services)

!   Example driven configuration •  JVM server profile •  pipeline configuration

!   Configuration life-cycled with parent resource •  definition, configuration, … •  creation, collaboration, deployment

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Create JVM Server Definition in a CICS Bundle

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Monitoring

Platform

Application

Queues

Applications

JavaApplications

Files Database

Terminals Web

Operation

SMF

/Platform/Application/1/0/0/Operation

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Dynamic routing by application context

!   PROGRAM and URIMAP entry points set application context !   Application context available in addition to TRANID in the

following URMs: •  The CICS Dynamic Routing Exit Commarea (DFHDYPDS) •  The CPSM User Service Program Commarea (EYURWTRA) •  The CPSM WLM Router Access Program Commarea

(EYURWCOM)

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CICS THRESHOLD POLICY

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Real World Example: Phone Contract

200  free  minutes  Unlimited  text  messages  500MB  of  data  

“You  have  now  used  80%  of  your  data  allowance”  

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Rules and Policy

!   Rules •  Resources: minutes, texts, data •  Threshold: 80%, 100% •  Action: message, change tariff

!   Policy •  Collection of rules (contract)

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Threshold  Policy

!   Policy Based Management •  Resource, threshold, and action •  Action can be:

–  Emit a message –  Emit a system event –  Abend the task

!   Scoped !   New resources in CICS TS V5.2

Define a Policy

Threshold  breach  

CICS Triggers an action

Abend Event Message

Trigger an action

SQL

Files

Storage

CPU An XML Policy document defines the threshold and action

Policy  Scoping  

Application A

Platform P

Operation

Application B

Operation Operation

Binding A2P Binding B2P

Operation

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Policy  Scoping:  Pla@orm  

Application A

Platform P

Operation

Application B

Operation Operation

Binding A2P Binding B2P

Operation

Policy

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Policy  Scoping:  ApplicaBon  

Application A

Platform P

Operation

Application B

Operation Operation

Binding A2P

Policy

Binding B2P

Operation

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Policy  Scoping:  OperaBon  

Application A

Platform P

Operation

Application B

Operation Operation

Binding A2P Binding B2P

Operation

Policy

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Policy  Scoping:  ApplicaBon  MulB-­‐Versioning  

Application A 1.0.0

Platform P

Operation

Application A 1.0.1

Operation Operation

Binding A2P 1.0.0

Policy P

Binding A2P 1.0.1

Operation

Policy P’ Policy Q Policy Q

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Threshold Policies

!   V5.1 •  CPU time •  Storage requests & bytes •  SQL requests •  LINK requests •  FILE requests

!   V5.2 •  Elapsed time (RFE 31868 “Add elapsed time …”) •  TDQ requests & bytes •  TSQ requests & bytes •  START requests •  SYNCPOINT requests

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24 24

TS Queue bytes §  Trigger on amount of

data written

§  Selection for

§  Main and AUX

§  Request is counted whether the request is successful or not

§  Both local and remote requests are counted

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DevOps:  Using  Policy  Throughout  the  ApplicaBon  Life-­‐cycle  

DEV TEST PROD

development.Binding

Application Application

test.Binding production.Binding

Policy Policy Policy

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System Events

§  Capture events when: – DB2 connection status changes

–  FILE enable status changes –  FILE open status changes

– CICS message is issued

– Unhandled transaction abends – Current active tasks for a TRANCLASS goes above or below a

certain percentage of MAXACTIVE

– Current active task in a region goes above or below a certain percentage of MAXTASKs

System Event Examples

!   Generate an alert whenever a connection from CICS to DB2 is no longer in Connected status

!   Emit events for all transaction classes when the number of transactions in the tranclass goes below 50%, to understand which tranclasses are least used (write the events to a TS queue, or monitor by sending to IBM business monitor)

!   Collect events about any changes in the open status of the ‘CUSTOMER’ file, to ensure these happen within the approved batch windows

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CICS TOOLS

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CICS CONFIGURATION MANAGER

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CICS Configuration Manager Highlights

!   Single point of control for CICS resource definitions including •  Create, Update, Delete, Copy, Replicate

!   Provides the ability to “change manage” definitional change through the various user environments (e.g. Development, Test, Production)

!   Provides audit, back-out and change authorization capabilities

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!   Migration schemes identify source and target repositories !   Different schemes to progressively migrate a change

package

Development environment

Test environment

Change package

Production environment

Change package

“Development to Test” migration scheme

“Test to Production” migration scheme

CICS CM: Migrating definitions through application life cycle

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CICS CM: Backout and audit compliance

!   All changes logged to a journal file !   Backout entire change package !   Recover individual resource definitions !   View resource definition histories on screen !   Batch, ISPF and CICS Explorer view of change history

Backout Production Changes System failure! Test

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CICS CM: Coordination with SCM 1. Integrate CM with batch 2. Drive SCM from CM

Package

CICS CM SCM

Endevor RTC

SCLM

JCL User Exit

•  READY •  MIGRATE •  BACKOUT

Package

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Management of resource types for cloud

!   V5.1 •  APPLDEF •  PLATDEF

!   V5.2 •  System definitions •  System groups •  WLM definitions and associations

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CICS INTERDEPENDENCY ANALYZER

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Visualize Applications used by Platform

Show resources used by Platform/Application

Which other Platforms/Application use a resource?

CICS PERFORMANCE ANALYZER

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CICS PA perspective Application Context performance summary

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CICS Cloud perspective

Application Context performance summary

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Delivered in CICS PA 5.1 Report forms to help with definition of policy

Name Type Description MPFCRQ SUMMARY Platform - File Request Summary MPMISC SUMMARY Platform - CPU/LINKs/DB2 Summary MPSHRSTG SUMMARY Platform - Shared Stg Summary MPT24STG SUMMARY Platform - 24-bit Stg Summary MPT31STG SUMMARY Platform - 31-bit Stg Summary MPT64STG SUMMARY Platform - 64-bit Stg Summary MPTXCLST LIST Platform - Threshold Exceeded MPTABND LIST Platform policy - Transaction Abend

New in CICS PA 5.2

Name Type Description MPMISC1 SUMMARY

Platform - Response/CPU Summary

MPMISC2 SUMMARY Platform - Misc Requests Summary MPTDRQ SUMMARY Platform - TD Request Summary MPTSRQ SUMMARY Platform - TS Request Summary

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New Summary report tiered format

1 V5R2M0 CICS Performance Analyzer Performance Summary + __________________________________________________ 0SUMM0002 Printed at 15:05:19 3/18/2014 Data from 16:24:07 2/03/2014 to 16:37:57 2/03/2014 Page 1 Platform Application - Summary ACPlatNm: DSWCloud ACApplNm: DSWCloudApplication ACApplVr: 1.0.0 Avg Max Avg Avg Avg Max Avg Avg ACOperNm #Tasks Response Response Dispatch User CPU Suspend Suspend DispWait FC Wait Time Time Time Time Time Time Time Time BillofMaterialInquiry 1316 .4004 2.2716 .0028 .0025 .3976 2.2660 .0099 .0123 CustomerDetailsUpdate 2233 .1093 .4219 .0013 .0011 .1080 .4203 .0031 .0025 CustomerInquiry 2233 .0435 .1800 .0010 .0008 .0425 .1787 .0015 .0009 HotelBookingDetails 1342 .0650 .1647 .0009 .0008 .0641 .1638 .0020 .0021 HotelBookingInquiry 1342 .0340 .1559 .0009 .0007 .0331 .1549 .0012 .0011 InprocessInventoryUpdate 2220 .1102 .5251 .0019 .0017 .1082 .5230 .0038 .0059 InquiryonBillofMaterial 3104 .0331 .0966 .0018 .0016 .0313 .0948 .0016 .0016 LabourOperationsInquiry 4024 .0333 .1075 .0025 .0023 .0307 .1018 .0017 .0016 Menu 28727 .0278 .1217 .0005 .0004 .0273 .1211 .0008 .0000 MessageTransfertoLog 2601 .0286 .1121 .0006 .0005 .0280 .1115 .0009 .0000 OrderInquiry 2655 .0279 .0761 .0005 .0004 .0274 .0755 .0009 .0000 PartLocationInquiry 2655 .0329 .2390 .0017 .0015 .0311 .2369 .0015 .0013 PartNumberDelete 4431 .1113 .4668 .0011 .0010 .1102 .4657 .0030 .0026 ReceiveData 7009 .0549 .2366 .0011 .0010 .0538 .2352 .0020 .0020 65892 .0515 2.2716 .0010 .0008 .0505 2.2660 .0016 .0012

!   New tiered report summarizes activity based on two level keys •  Used for Summary report for Platforms and Applications –  Using new sample form MPAPPSUM

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Topics

!   CICS Platform !   CICS Threshold Policy !   CICS Tools

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Questions?

Customer Sessions

!   Thursday •  2267 Smarter Banking Process : More flexible and stable batch

process with QGate on CICS/MQ, Bank Central Asia •  2436 Modernizing the mainframe, Humana

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