Ensuring network readiness

When you prepare an application package for production mode, you must be aware of the status of all terminals or connected devices planned for availability with the online IMS system.

• Develop a detailed implementation plan for each device and control unit.
  Some of the items in this document might be:

  • Exact type of device, model, and operational characteristics
  • The configuration for a set of components
  • Physical location and person responsible for the device installation
  • The names by which the online IMS system knows the device: LTERM, line number, unit address, and node names
  • The correct VTAM® MODEENT macro's PSERVIC parameters for: LUNAME, LUTYPE, TS Profile, 32xx model, 3270 screen size, and NTO device type
  • The logon, user, and MSC descriptors for terminals and users defined with ETO
  • The appropriate exit routines
  • If an output device, the source of paper supplies and arrangements for distribution of output
  • If already in operation outside of IMS, the restrictions on the use of the device for test purposes
  • System definition requirements for the device, and the planned timing of the generation
  • If the device is programmable, what programs are necessary, locally and in the host, for IMS execution
• Use the terminal profiles built up as part of the preparation for system and network definition.
  You need this information because of the potentially large number of devices that can operate in the online IMS system. Also, you must converse in terms of the hardware with installation personnel and data communications specialists whose responsibilities usually lie beyond IMS device support.
• Contact the person responsible for the system definition regarding the status of statically defined VTAM terminals.
  The definition events are usually scheduled as part of a master plan for implementing the application package.