Chapter 4: IMS Common Queue Server and the System Logger

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Overview

This chapter describes how the IMS shared queues environment exploits the System Logger to ensure the recoverability of the shared message queues in the event of a loss of the shared queue structures. Specific topics include:

  • Overview of the IMS shared queues environment, including the Common Queue Server (CQS) and the System Logger

  • How CQS uses the System Logger

  • How to define the System Logger in the IMSplex

  • CQS and System Logger operational considerations

  • CQS and System Logger error recovery considerations

  • CQS and System Logger performance considerations

Within this chapter, we will use the term "IMSplex" to refer to one or more IMS systems and associated address spaces running in a Parallel Sysplex with data sharing and shared queues. The term "shared queues group" refers to those IMS control regions which are sharing the message queues.



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Systems Programmer's Guide to--Z. OS System Logger
ASP.NET for Web Designers
ISBN: 738489433
EAN: 2147483647
Year: 2002
Pages: 99
Authors: Peter Ladka

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