Communication Methods › CTCONLY as the Initial Communications Method › Implement CTCONLY Communication

Implement CTCONLY Communication

To implement CTCONLY as the initial communication method, you customize certain parameters in the INIT MIM file.

Follow these steps:

1. Define the systems participating in the MIMplex using DEFSYS statements:

   DEFSYS(sysa,aa,sysa)
   DEFSYS(sysb,bb,sysb)
   

2. To specify preferred master systems and recovery options use the GLOBALVALUE statement.
3. Define CTC devices for CA MIM communication using CTCPATH statements:

   CTCPATH FROMSYSTEM=sysa ADDRESS=deviceaddress TOSYSTEM=sysb
   CTCPATH FROMSYSTEM=sysb ADDRESS=deviceaddress TOSYSTEM=sysa
   

4. Specify CTCONLY as the initial communications method using the MIMINIT COMMUNICATION statement.
5. Define checkpoint files for each system using the ALLOCATE statement on z/OS systems and in the DDNAMES MIM file on z/VM systems.

Note: For more information, see the CA MIM Statement and Command Reference Guide.