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MAINFRAME - TIP OF THE DAY : Q. If there is a situation, where we need to code more than 255 steps in a JOB? A. We need to split jcl into two jcls , at the end of the first jcl check the condition code and initiate the second jcl.

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HOw to run jcl at particular date and time?

 
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parthiban
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PostPosted: Tue Mar 17, 2009 1:48 am    Post subject: HOw to run jcl at particular date and time? Reply with quote

Hi..
I would like to know ..how to run jcl at particular date and time...Like how an automation work does...If possible..Let me know that...
pls explain with keyword and example...Thank u

Bye
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PostPosted: Tue Mar 17, 2009 9:49 am    Post subject: Reply with quote

as per my knowledge, we need to use CA-7 tool to set a jcl to execute in a specified time. OR any other similar tool.
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Anuj Dhawan
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PostPosted: Tue Mar 17, 2009 3:53 pm    Post subject: Reply with quote

Hi,

Natarajan has given you the right direction - CA-7, ESP or any other Scheduler software is the right choice for such things. There are some non-production scenarios where people use INTRDR in the last step of some JCL to initiate the next logical JCL. . . but they are not that reliable . . .
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PostPosted: Tue Mar 17, 2009 4:19 pm    Post subject: Reply with quote

Hi 'gain,

Quote:
The JES2 Set Automatic command $TA is issued on the MVS Master Console. It tells JES to execute another JES command at the specified time or interval.

The tricky part is telling JES what command to issue at that time. There are no JES commands to submit a job (you can easily start a task, though), so you have to think about what you want to do. Of course, most shops usually have a task that can be started and passed a jobname, which the task will read from a specific library and submit through the Internal Reader. You would need to know the name of that task and what library(s) it reads the jobs from.

The only possibility I can think of is to submit your job with TYPRUN=HOLD. Then, issue the $TA command for the set time. Have the $TA command issue the $A command to release your specific job.

Surely these test systems must offer some sort of alternative??

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