In just a few days the new mainframe - z13 - will be available. See my related blog entry here .
If you have your new z13, you may want to migrate your IOCP definitions. In that case you need to update the HiperSockets definitions (CHPID type IQD).
There is a new parameter in the CHPID statement - the VCHID parameter.
Starting with z13, the IOCP generation of HiperSockets devices requires the keywork VCHID. VCHID specifies the virtual channel identification number associated with the channel path (similar to PCHID). A valid range is... [More]