Requirements for using VTAM generic resource groups

There are several requirements for balancing sessions using VTAM® generic resource groups.

These requirements include:

• A sysplex environment.
• A z/OS® coupling facility structure named ISTGENERIC defined in the active CFRM policy for the sysplex environment.
• A connection between the VTAM APPN node and the ISTGENERIC coupling facility structure.
• All IMS subsystems participating in the generic resource group reside in the sysplex environment.
• Each IMS subsystem participating in the generic resource group shares the same IMS generic resource name.
• An APPC generic resource name is defined to z/OS for LU 6.2 communications. Define this name on the GRNAME parameter of the LUADD statement in the APPC/MVS APPCPMxx member.
• All IMS systems that belong to the generic resource group must be defined with equivalent specifications.

Related reading: For information on VTAM and defining the ISTGENERIC coupling facility structure, see z/OS Communications Server: SNA Network Implementation Guide.