Addressing OLTP Solutions with CICS: The Transaction Server ... - Ibm

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The Team That Wrote This Redbook xiv CICS for AIX as the Transaction Server This chapter describes the infrastructure provided by DCE to support the proper execution of a CICS for AIX system. Planning considerations are discussed. • Chapter 6, “Interactions with Encina for AIX” This chapter describes the transactional services provided by Encina to support the CICS for AIX system. Planning considerations are discussed. • Chapter 7, “Interactions with the DB2 Family of Products” This chapter provides an overview of the X/Open XA interface. Various RDBMS access options are discussed with reference to DB2 as the RDBMS. Planning considerations for accessing various databases belonging to the DB2 family from the CICS for AIX system are presented. • Chapter 8, “Using CICS System Manager for AIX” This chapter describes the functions and components of CICS System Manager for AIX and explains how it can be used to manage the CICS for AIX systems in terms of workload and system management. Planning considerations are presented. • Chapter 9, “Accessing CICS from the Web” This chapter describes how CICS applications running in the CICS for AIX system can be accessed from the World Wide Web using CICS Internet Gateway for AIX supplied by IBM Transaction Server for AIX. Relevant planning considerations are discussed. • Chapter 10, “Application Design Considerations” This chapter provides the considerations for designing good CICS applications in general. • Chapter 11, “TDJ Enterprise International Limited” This chapter describes a sample complex OLTP environment to demonstrate how IBM Transaction Server for AIX has helped facilitate a complex OLTP. This book was produced by a team of specialists from around the world working at the International Technical Support Organization, San Jose Center. Guido De Simoni is a Project Leader at the International Technical Support Organization, San Jose Center. He writes extensively and teaches IBM classes worldwide on all areas of distributed OLTP. Before joining the ITSO three years ago, Guido worked in the AIX Competency Center in Italy as a Connectivity Advisor. Tim Dunn is a Performance Analyst at the Hursley Laboratory in England. He has eight years of experience in the performance tuning of CICS for AIX and CICS for MVS/ESA systems. He has also worked extensively with CICS System Manager for AIX, focusing on the workload management component. Haiyan Jia is a Systems Engineer at IBM China Co. He has two years of experience in technical support of CICS for AIX systems. Haiyan also worked as a UNIX systems administrator for three years. Yan Tsang is an Advisory IP Specialist at the IBM Support Center in Sydney, Australia. He has 21 years of experience in various support services and for the
Comments Welcome CICS family of products. Yan helped in the design of the CICS Automated Operation product for the MVS environment. His recent service activities have focused on solutions using CICS and MQSeries on AIX systems. Thanks to the following people who took time to review this book: Maurizio Canton IBM Italy Barbara Ioris IBM US Transaction Systems Marketing Silvio Podcameni International Technical Support Organization, San Jose Center Geoff Sharman IBM Hursley Laboratories Thanks also to Maggie Cutler for her editorial review and Christine Dorr for her graphics support. We want our redbooks to be as helpful as possible. Should you have any comments about this or other redbooks, please send us a note at the following address: redbook@vnet.ibm.com Your comments are important to us! Preface xv
Page 1: Addressing OLTP Solutions with CICS
Page 4 and 5: Take Note! Before using this inform
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Page 8 and 9: 9.4 Security Issues on the Internet
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Page 22 and 23: 1.2 Complex OLTP Business Environme
Page 24 and 25: Figure 2. OLTP Complex for XYZ Insu
Page 26 and 27: By using common application program
Page 28 and 29: 1.5 OLTP Market 10 CICS for AIX as
Page 30 and 31: Figure 5. OLTP Market Segmentation
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Page 34 and 35: 2.1 IBM Software Servers 2.1.1 Lotu
Page 36 and 37: 2.2.1 CICS Clients V1.1.0 A Transac
Page 38 and 39: 2.2.4 CICS Internet Gateway for AIX
Page 40 and 41: 3.1 Services CICS for AIX is a very
Page 42 and 43: 3.1.2 CICS API 24 CICS for AIX as t
Page 44 and 45: 3.1.3.1 Terminal Users and CICS Reg
Page 46 and 47: 3.2 Implementation 3.2.1 Components
Page 48 and 49: 3.2.2 Processes 3.2.1.3 Application
Page 50 and 51: 3.3.1 DCE RPC 3.3.2 TCP/IP 32 CICS
Page 52 and 53: Figure 9. Interconnection Using Enc
Page 54 and 55: connect to a PPC Gateway server mac
Page 56 and 57: Figure 12. Interconnection Using TC
Page 58 and 59: 3.4.3 Configuration 3.4.4 Managing
Page 60 and 61: 3.4.6 Intersystem Communication CIC
Page 62 and 63: 3.4.8 Data Location 44 CICS for AIX
Page 64 and 65: 3.4.11 Operations plan to cope with
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3.5 Summary 48 CICS for AIX as the
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Figure 13. Application Server Model
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4.2.1 CICS External Call Interface
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By means of mapping files, you can
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4.3 Versions 56 CICS for AIX as the
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4.4 Sample Network Configurations 4
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4.5.1 CICS Client for OS/2 60 CICS
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4.5.2 CICS Client for DOS 62 CICS f
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4.5.5 CICS Client for AIX CICS Clie
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66 CICS for AIX as the Transaction
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5.1.1 DCE Threads 5.1.2 Remote Proc
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The GDS is based on the CCITT X.500
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egion or server it is looking for.
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6.1.2 Encina Toolkit Server Core 6.
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is also necessary to use native AIX
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7.1 X/Open XA Interface 7.1.1 X/Ope
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Communication between the transacti
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7.2.2 Single-Phase and Two-Phase co
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Figure 28. Switching Access among D
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Figure 30. CICS Access to Remote DB
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emote DRDA database. Information ab
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As the COMMAREA has an allowable ma
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8.2 Workload Management 112 CICS fo
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8.4.2 System Management Application
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Figure 36. The CICS SM GUI 8.4.6 Di
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Figure 37. CICS SM Component Distri
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Figure 38. Combining Resources 122
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8.5.2 The Reference System 124 CICS
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8.6 Planning Considerations for CIC
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9.1 Some Terminology 9.2 Services 1
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Figure 41. CICS Internet Gateway fo
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9.3.3 Data Integrity The Web was or
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9.3.5 High Availability The drawbac
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or employee records, eavesdropping
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• Type, size, and quantity of rec
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10.3.3 Writing ECI and EPI Applicat
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The ANIMATOR debugging tool enables
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10.8 Summary 154 CICS for AIX as th
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11.1 The Big Picture 158 CICS for A
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11.2 User Access 160 CICS for AIX a
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Figure 44. Access to Various DB2 Da
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takes place over TCP/IP or SNA comm
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provide greater protection in the u
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How Customers Can Get ITSO Redbooks
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design. The process of composing a
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A year later ISC gave SQL formal in
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designing efficient applications 15
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