Multi-System Facility › MSF Operation › Define and Activate MSF Sessions

Define and Activate MSF Sessions

Assume you need to define and activate your complex of three domains with VTAM application names already set up (OPSMVSA, OPSMVSB, and OPSMVSC) in each domain with MSF system IDs SYSA, SYSB, and SYSC.

To define and activate the MSF sessions

• Issue the following set of commands on all systems once CA OPS/MVS has completed its initialization:

  ADDRESS OPSCTL "MSF DEFINE MSFID(SYSA) APPLID(OPSMVSA)"
  ADDRESS OPSCTL "MSF DEFINE MSFID(SYSB) APPLID(OPSMVSB)"
  ADDRESS OPSCTL "MSF DEFINE MSFID(SYSC) APPLID(OPSMVSC)"
  ADDRESS OPSCTL "MSF START NORETRY"
  ADDRESS OPSCTL "MSF ACTIVATE MSFID(ALL)"
  

  Usually, you issue these commands in the OPSTART2 OPS/REXX program. CA OPS/MVS runs the OPSTART2 OPS/REXX program automatically immediately after it finishes initialization. For more information about this program, see the Administration Guide.

• However, you can also issue the commands through one of these methods:
  • In the AOF
  • From an OPS/REXX program
  • From a console using the OPSMSF command rule in the sample libraries

  Exactly the same parameters can be used on all three systems. This is because the MSF learns which one of the three systems defined is the local system from the specification through OPSPRM and does different ACTIVATE processing for the local system (the MSF OPENs the VTAM ACB) than for the remote systems (the MSF executes OPNDSTs to start sessions with them). The parameters of the MSF were purposely designed this way to reduce the number of parameters that must be set.