The autoinstall control program at INSTALL

If autoinstall is operative, the autoinstall control program is invoked at INSTALL for:
  • Local SNA LUs
  • MVS consoles
  • Local APPC single-session connections initiated by a CINIT
  • Local APPC parallel-session connections initiated by a BIND
  • Local APPC single-session connections initiated by a BIND
  • Client virtual terminals
  • Shipped terminals and connections.

On each invocation, CICS® passes a parameter list to the control program by means of a communication area addressed by DFHEICAP. The parameter list passed at INSTALL of MVS consoles is described in Autoinstall control program at INSTALL. The parameter list passed at INSTALL of local APPC connections initiated by BIND requests is described in The communication area at INSTALL for APPC connections. The parameter list passed at INSTALL of shipped terminals and connections is described in The communications area at INSTALL for shipped terminals. The parameter list passed at INSTALL of client virtual terminals is described in The communications area at INSTALL for Client virtual terminals. The parameter list passed at INSTALL of MVS consoles is described in Writing a program to control autoinstall of consoles. This section describes only INSTALL of local terminals (including APPC single-session connections initiated by a CINIT).

The control program is invoked at INSTALL for terminals when both:
  • A z/OS® Communications Server for SNA logon request has been received from a resource eligible for automatic installation whose NETNAME is not in the TCT.
  • Autoinstall processing has been completed to a point where information (a terminal identifier and autoinstall model name) from the control program is required to proceed.