z/OS Environment

This part contains information about Natural under the operating system z/OS.

The following topics are covered:

Natural under z/OS Contains an overview of special considerations that apply when you are running Natural under z/OS online or in batch mode.
Authorized Services Manager Describes the functionality and operation of the Authorized Services Manager (ASM) which is available under z/OS.
Natural Roll Server Functionality Explains the functions of the Natural Roll Server in general, its use in a single z/OS system and in a z/OS Parallel Sysplex environment.
Natural Roll Server Operation Provides information on the roll server system requirements, operation, performance tuning and restart capability.

Note:
The codes that Natural may receive when the Roll Server is used during a Natural session runtime are output by the corresponding teleprocessing interfaces (Natural under CICS or Natural under IMS TM). For a list of these codes, refer to the Return Codes and Reason Codes of the Roll Server Request in the Messages and Codes documentation.