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The Web services support in CICS® Transaction Server Version 3 enables your CICS programs to be Web service providers or requesters. CICS supports a number of specifications including SOAP Version 1.1 and Version 1.2, and Web services distributed transactions (WS-Atomic Transaction). This IBM® Redbooks® publication reviews CICS Web Services performance in two particular areas: MTOM/XOP: Here we focus on performance benefits that can be achieved by taking advantage of the MTOM/XOP standard to transmit large binary data objects. The single inquiry function of the CICS catalog manager application has been modified to return an image of the requested item in addition to its details. This function is exposed through a Web service. Security: There are a number of ways to secure your CICS Web Services messages. Here we look at two technologies: WS-Security and DataPower®. We compare the performance and relative merits of using WS-Security with and without DataPower, and discuss what factors might influence your choice of technology. We highlight tools that can help you to understand the performance profile of Web service interactions with CICS, such as; - RMF z/OS® Resource Measurement Facility (RMF) - IBM CICS Performance Analyzer for z/OS (CICSPA) - ITCAM for SOA - OMEGAMON® XE for CICS on z/OS This book considers performance by using different scenarios including Security, MTOM/XOP, and the use of the IBM Tivoli® Monitoring tools to help identify problems that can affect the performance of Web Services. Spec

How can you manage your CICS Transaction Gateway systems on z/OS so as to meet the growing availability and performance requirements of your business? The CICS Transaction Gateway V7.1 provides a wealth of new systems monitoring functionality, and together with the new IBM Tivoli OMEGAMON XE for CICS TG product and the support for CICS TG statistics in CICS Performance Analyzer for z/OS (CICS PA), provides you with a set of enhanced capacity planning and problem determination capabilities. The first part of this IBM Redbooks publication concentrates on product installation and customization for both the CICS Transaction Gateway V7.1 for z/OS and IBM Tivoli OMEGAMON XE for CICS TG product. The second part of the book highlights the new systems monitoring functionality in CICS Transaction Gateway V7.1 for z/OS and how it is complemented by the new IBM Tivoli OMEGAMON XE for CICS TG product and the support for CICS TG statistics in CICS PA. A set of typical customer scenarios are used to demonstrate the practical usage of the new functions, in the following four problem determination areas: - Diagnosing common problems - Diagnosing system slow downs - High Availability with XA and OMEGAMON XE - Historical data analysis Together, these scenarios can be used to quickly determine the root cause of typical production problems and provide in-depth information to allow you to plan, build, and monitor a highly available CICS Transaction Gateway systems to provide SOA access to your existing CICS applications.

This IBM Redbooks document is a comprehensive guide to threadsafe concepts and implementation in the context of CICS. In addition to providing detailed instructions for implementing threadsafe in your environment, it describes the real world experiences of users migrating applications to be threadsafe, along with our own experiences. It also presents a discussion of the two most critical aspects of threadsafe, system performance and integrity. Originally, CICS employed a single TCB to process everything (such as application code, task dispatching, terminal control, file control, and so on) executed on what today is known as the application or Quasi-reentrant (QR) TCB. Over time, CICS added specialized TCBs to help offload management tasks from the overcrowded QR TCB. VSAM subtasking, the VTAM High Performance Option, and asynchronous journaling were all implemented on separate TCBs. Of course, the DB2 and MQ Series attachment facilities also employ TCBs apart from the application TCB. Distributing processing among multiple TCBs in a single CICS address space is not new, but customers and ISVs had little control over which TCB CICS is selected to dispatch a given function. Beginning with CICS Version 2, all of that has changed. Applications can execute on TCBs apart from the QR TCB. This has positive implications for improving system throughput and for implementing new technologies inside of CICS. Use of the MVS JVM inside CICS and enabling listener tasks written for other platforms to be imported to run und

This IBM Redbook focuses on CICS Migration to CICS TS 3.1, showing you how the CICS Tools (CICS Configuration Manager, CICS Interdependency Analyzer, and CICS Performance Analyzer) can help you with your migration. Part 1, "Introduce CICS TS 3.1 and the CICS Tools" on page1, gives an overview of the new functionality available in CICS TS 3.1 and an overview of the CICS Tools individually. Part 2, "Migration" on page111, looks at migration, discussing migration considerations and CICS TS 3.1 exploitation. It also looks at three migration scenarios: - Migrating CICS TS 2.3 CSD to CICS TS 3.1 CSD - Migrating CICS TS 2.3 CSD to CICSPlex SM TS 3.1 BAS - Migrating an Application to CICS Web Services in CICS TS 3.1

This IBM Redbook targets CICS Transaction Server V1.3 and V2.2 customers who plan to implement IBM CICS Performance Analyzer. This tool allows you to produce a wide range of reports and extracts to help you tune and manage CICS systems. The first part of this book begins with an overview of CICS-provided tools and utilities to help you gather and analyze performance data. Then it introduces the CICS Performance Analyzer product and its various report generating options. It shows you how to import the extracted performance data into spreadsheets for further analysis. Then, the second part of this redbook takes you through a series of scenarios that cover major CICS components and interfaces. These include CICS-VSAM interface, CICS-DB2 Attachment Facility, CICS use of the MVS System Logger, Java applications in CICS, and others. For each of the selected scenarios, you see how you can extract the relevant performance data using CICS Performance Analyzer. You can then use this data to improve the overall system performance or to compare different execution options at run time. This redbook also explores the new functionality that CICS PA Release 1.3 offers. This includes WebSphere MQ and how CICS PA now handles System Management Facility (SMF) 116 records. It looks at the new CICS Monitoring Facility (CMF) reports such as the Wait Analysis and Temporary Storage Usage reports. And it explains the Historical Database (HDB) facility for maintaining a history of CMF performance data for longer term reporting or export