Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Chapter 14: WebSphere Application Server for z/OS

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Objectives After completing this chapter, you will be able to: List the six qualities of the J2EE Application model Give three reasons for running WebSphere Application Server under z/OS Name and describe three connectors to CICS, DB2, and IMS

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Key terms in this chapter cell CS CGI EIS JMX J2EE SR cluster node

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. WebSphere Application Server for z/OS Conforms to Software Development Kit (SDK) Interoperates with other subsystems CR = Controller Region SR = Servant Region

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Components of WebSphere Application Server for z/OS: Organization based on concepts: Servers Nodes (and Node Agents): a logical grouping of WebSphere-managed servers Cells: a grouping of Nodes Within the address spaces, concept of CONTAINER

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. J2EE Application Model in z/OS Same as on other platforms, following SDK: Functional Reliable Usable Efficient Maintainable Portable

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Running WAS on z/OS Basics of WebSphere on z/OS Consolidation of workloads WebSphere for z/OS Security (EIS=CICS/TS+DB2+LotusDomino+IBM Director) RACF WebSEAL Secure Proxy Continuous availability (see next foils) Performance за счет функций управления нагрузкой: Маршрутизации Организации очередей Назначения приоритетов

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Running WAS on z/OS - Continuous availability WebSphere with Sysplex Distributor

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Running WAS on z/OS - Continuous availability Clustering of Server in Cell

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Running WAS on z/OS - Continuous availability Vertical and Horizontal Cluster

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Running WAS on z/OS - Performance WAS uses: Three distinct functions of WLM: Routing Queuing Prioritizing

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Application Server Configuration on z/OS Base Server Node

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Application Server Configuration on z/OS Network Deployment Manager

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Connectors for Enterprise Information Systems Some considerations: Expensive Must be secured Need to perform well Must be monitorable Methods needed Quality of devices

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Basic Architecture of an connector to an EIS

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Mainframe Connectors CICS Transaction Gateway IMS Connect DB2 JDBC

Introduction to the new mainframe © Copyright IBM Corp., All rights reserved. Summary In this chapter, you learned: about the WebSphere Application Server for z/OS J2EE Application model Modes to run the WAS Connectors to CICS, DB2, IMS