Initiating sessions with IMS in a VTAM generic resource group
Terminal sessions can be initiated either from IMS or from a terminal. All sessions initiated by IMS are generic sessions; that is, sessions in which affinity is established. MSC sessions are initiated with an /RSTART LINK command.
Sessions from a terminal can be initiated in the following ways:
- You can initiate a session with any IMS in a generic resource group by specifying the GRSNAME execution parameter. An affinity with the selected IMS is then established.
- You can initiate a session with a specific IMS by specifying the APPLID name of the system. No affinity is established.
- If an IMS in a generic resource group is also part of an XRF with MNPS system, you can initiate a session with that specific IMS using the MNPS name instead of the APPLID name. No affinity is established.
Related reading:
- For more information on XRF and VTAM® generic resources, see XRF and VTAM generic resources.
- For more information on XRF systems and specifying the MNPS name, see Tailoring the IMS execution JCL.