Chapter 2. DB2 Environment

• z/OS

• Address spaces

• Installation and migration

• System parameters

• Commands

• Utilities

• Catalog and directory

• Distributed data

• Subsystem pools

DB2 operates as a formal subsystem of z/OS. DB2 utilities run in the batch environment, and applications that access DB2 resources can run in the batch, TSO (Time Sharing Option), USS (UNIX System Services), IMS (Information Management System), or CICS (Customer Information Control System) environment. IBM provides attachment facilities to connect DB2 to each of these environments.

This chapter looks at the subsystem architecture that supports DB2 and the attachments available. This chapter also looks briefly at the installation process of the DB2 subsystem and ...

Get DB2® for z/OS® Version 8 DBA Certification Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.