Chapter 2. Environment

  • OS/390 and z/OS

  • Address Spaces

  • Configuration Parameters

  • Commands

  • Utilities

  • Catalog and Directory

  • Distributed Data

DB2 operates as a formal subsystem of OS/390 and z/OS. DB2 utilities run in the batch environment, and applications that access DB2 resources can run in the batch, TSO, IMS, or CICS environments. IBM provides attachment facilities to connect DB2 to each of these environments.

In this chapter the subsystem architecture that supports DB2 and the attachments available.

Although not covered in detail, the installation process of the DB2 subsystem and the subsystem parameters known as DSNZPARMS will be discussed. We will also take a look at how to execute the utilities and various commands.

DB2 also has the ability to ...

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