Overview
Use the agent for z/OS to schedule work from IBM Workload Scheduler on the JES2 or JES3 subsystem of z/OS.
You install and configure the agent for z/OS in the z/OS system. As soon as it is configured, the agent automatically links with the dynamic workload broker component of IBM Workload Scheduler (defined during the configuration process) through the HTTP/HTTPS protocols or through the gateway. For more information about the installation of the gateway see
With the agent for z/OS you can define jobs and schedules on IBM Workload Scheduler and submit a subset of the jobs to a z/OS system. You run the planning tasks on IBM Workload Scheduler while the execution is demanded to the z/OS system.
The agent for z/OS acts as a proxy between dynamic workload broker, which is the IBM Workload Scheduler component that actually submits workload, and JES, which is the component in the z/OS® system that executes the workload. The agent passes the workload from IBM Workload Scheduler to JES, and returns all updates about its execution back to IBM Workload Scheduler in the form of events.
The agent for z/OS represents a lightweight end-to-end scheduling solution that enables users to define and manage workload that is to be processed by JES entirely from IBM Workload Scheduler.
The agent exploits the HTTP submission protocol to receive job submission requests and to asynchronously send back job status notifications.
JCL and
includes one of the following: - The entire JCL definition of the
task to be run by JES. In this case, the JCL is part of the job definition
stored in the IBM Workload Scheduler database
and is sent to the agent with the rest of the job at submission time.
This is called submission
by definition. - The names of the data set and of the file containing the JCL definition
in the z/OS system where the agent runs. When the job is submitted,
the agent uses this information to track the JCL definition in the
z/OS system. This is called submission
by reference.
- The composer or the dynamic workload broker command lines
- Workload Designer of the Dynamic Workload Console
- The dynamic workload broker graphical user interface
The agent supports the scheduling of jobs, but not of started tasks, on the z/OS® system.
JCL tailoring (variable substitution in z/OS® terms) is carried out before submitting the JCL to JES using the variable values specified in the variables tables in IBM Workload Scheduler.
You manage agent for z/OS jobs
as you manage other IBM Workload Scheduler jobs.
Use the Dynamic Workload Console to
see them in graphical or tabular views, or in host-lists. You can
also see the related job logs and carry out most actions (such as rerun, cancel,
but not kill) typically available for other jobs.
From the Dynamic Workload Console or the IBM Workload Scheduler command line you can view the job log for as long as the job output is kept in the JES spool.
Compatibility issues between the agent for z/OS and the IBM Z Workload Scheduler trackers
The agent for z/OS and the IBM Z Workload Scheduler trackers can coexist as long as you run the standard IBM Z Workload Scheduler tracker exits. If you are concerned about such coexistence, you must not therefore install any of the sample exits provided with the agent.