TCP/IP connected

A z/OS system with a TCP/IP connection shows two HCL Workload Automation for Z address spaces with a TCP/IP connection on a z/OS system.

You represent this system to the scheduler by defining a computer workstation with a destination field that specifies the destination name of the tracker. The controller transmits JCL, release commands, WTO messages, and cleanup requests across the TCP/IP link. The tracker receives data across the TCP/IP link and performs the following actions:
  • Submits JCL for batch jobs to the JES internal reader
  • Writes the JCL for started tasks into the EQQSTC data set and issues START procname z/OS commands
  • Issues JES release commands for jobs in HOLD status
  • Submits the cleanup job.

The event-tracking routines create event records to describe activities that occur on the system. These records are added to the tracker event writer queue in ECSA. The tracker processes the queue, transmits the records to the controller across the TCP/IP link, and writes the events into the event data set. The IP task in the controller receives the event records, and the current plan is updated.

Note: You must specify EQQEVDS for a controller, even if an event writer is not started in the controller address space. The EQQEVDS data set is used for submit checkpointing. It can be the same data set that is used by an event-writer function. Use a unique EQQEVDS for each address space of the scheduler.
Figure 1. A z/OS system with a TCP/IP connection

eqqi10ce The graphic shows a system with a TCP/IP link between the controller and tracker.

Example EQQPARM members for Figure 4 shows the initialization statements you can use to create the configuration in A z/OS system with a TCP/IP connection.

Table 1. Example EQQPARM members for Figure 4
Members for the controller Members for the tracker  
OPCECNT
OPCOPTS  OPCHOST(YES)
         ERDRTASK(0)

ROUTOPTS TCPIP(DEST1:'1.111.111.111'/4444)

TCPOPTS  TCPIPJOBNAME('TCPIP')
         HOSTNAME('9.12.134.1')
         TRKPORTNUMBER(8888)
TRKA
OPCOPTS OPCHOST(NO)
        ERDRTASK(0)
        EWTRTASK(YES)
TRROPTS HOSTCON(TCP)
        TCPHOSTNAME('9.12.134.1')
        TCPPORTNUMBER(8888)
TCPOPTS TCPIPJOBNAME('TCPIP')
        HOSTNAME('1.111.111.111')
        TRKPORTNUMBER(4444)
 
 

STDEWTREWTROPTS EWSEQNO(01)
Note: In this example, the name of the destination is DEST1. The destination name is defined also in the destination field of the workstation.