DFHZIS2

DFHZIS2 is the CICS intersystem program that provides services for CICS system code that uses intersystem or interregion (IRC) function requests, such as:

  • RECEIVE, invoked when DFHCRNP gets input data as a result of a 'switch first' SVC request.

  • IOR, the IRC input/output routine, which interfaces with the IRC SVC to send data to the other end of the connection, or await data from there.

  • GETDATA fetches input data into a TIOA

  • DISCONNECT disconnects a given IRC link

  • STOP quiets inter-region activity, either for connections to a given system, or for the whole of IRC

  • LOGOFF issues a logoff request to the IRC SVC, this completes IRC activity for this CICS system

  • OPERATIVE allows connections to be made to a given system

  • RECABRT - processes input 'abort' FMHs (FMH 07)

Reference Sources

CICS/ESA Version 3.1.1, Diagnosis Reference, LY33-6072-0, June 1990.