Customizing File Manager IMS™ Component
- Preparing to customize FM/IMS
  - Checklist for installing and customizing FM/IMS
  - Supported databases
  - Region types
  - PSB types
  - IMS™ region controller parameters
  - Security
    This section outlines how you can protect IMS™ resources that can be accessed through FM/IMS functions.
    - Controlling access to databases by FM/IMS functions
      Security administrators can control the access that users have to databases when using FM/IMS functions.
    - Controlling access to IMS™ subsystems and FM/IMS functions
    - Resource access security and AGN security considerations
      Resource access security (RAS) prevents an application program that is running in a dependent region from using IMS™ resources unless it is authorized to do so.
    - RACF® PADS security considerations
      Program Access to Data Sets (PADS) allows users or groups of users to access data sets with higher authority than they would normally have, but only while running a specified program.
  - IMS™ subsystem access
  - Avoiding resource contention
  - IMS™ management of ACBs
    This topic describes how FM/IMS operates when IMS™ is configured to manage the runtime application control blocks (ACBs).
  - Templates
    FM/IMS uses templates to format database segments into their individual fields. One template is required for each database.
  - Alternatives for making FM/IMS available
  - Alternatives for controlling FM/IMS auditing
- Customizing the operating environment for FM/IMS
- Customizing FM/IMS
- Customizing the FM/IMS security environment
- Customizing the File Manager audit facility for IMS™ component
- Customizing FM/IMS for national languages
  You can customize FM/IMS for national languages other than English.
- Verifying the customization of FM/IMS

Controlling access to IMS™ subsystems and FM/IMS functions

Through the IMS™ subsystem and FM/IMS Function Access Control facility you can control access to these resources:

The update or read-only functions
Individual FM/IMS functions
Individual IMS™ subsystems by the update or read-only functions
Individual IMS™ subsystems by individual functions

A number of functions in FM/IMS are protected by default. They are listed in Protected FM/IMS Functions. If you want to use these functions, you must give your users access to them using RACF® (or an equivalent security product).

For more information, see IMS subsystems and FM/IMS functions access control facility.