ESMAC provides facilities for running and controlling JCL jobs, using the JCL Control page.
When a job is submitted, it is immediately syntax checked, and then put onto an input queue to await execution. It goes into execution once an initiator of a corresponding class becomes available. If two or more jobs of the same class are on the input queue, the one with the highest priority is scheduled for execution first.
The default behavior, when using ESMAC to submit JCL job streams to an Enterprise Server, is for the file to be uploaded by the web browser and submitted across the wire (if the Enterprise Server is remote) along with other form data. In previous releases, you could use the ESMAC JES "Control" page (CASRDO44) to enter a file name that is only visible to the Enterprise Server instance.
Security changes implemented with Mozilla Firefox V3 and IE 8 prevent us from supporting this behavior. If you are using an older browser that still allows this behavior you can override it, and cause only the filename to be submitted to the Enterprise Server.
Once the job has completed, you can view details of its execution from the JCL Control page.
You see the JOBnnnnn page appears, where nnnnn is the number of the job. This page gives you access to several more facilities, described under the next section, Viewing Spool Queues .
You can view resource locks; you might want to do this if you suspect that a resource locking issue is holding up one of your JCL jobs.