MVSFORUMS.com

[ANDY]

Hi:

When I submit a job on VSE, I need to take a look to make sure which class is available for using then submit it on the class. On MVS is this the same concept ? If it is, what's the command using on MVS ?

Thanks

Andy

[Maton_Man]

1). If you have SHOWMVS then this will produce a wealth of information about your MVS system including initiators. Simply find the word 'Initiators' for a list of the job classes running on them.

You should have several defined to run the same/similar classes.

2). If you have SDSF installed and you have the authority to do it then you can look at either the initiators screen or the job classes screen which will tell you the same thing.

3). TASID (a utility, not part of MVS or TSO) also shows initiator lists.
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My opinions are exactly that.

[ANDY]

Hi:

I have not worked on MVS. We will use it later. I wise to get direct message from some experts.

Thanks

Andy

[superk]

I don't have my MVS commands manual handy, but I believe that the proper command is "$D I" to display the initiators.

[ANDY]

I think initiators is where JES assign jobs. We do not need to know which initiator is busy or not.

If the above is true, Does it mean when we submit jobs we do not need to pay attention about system or do not need to choice CLASS. JES will do rest things for us ?

Andy

[Maton_Man]

I only pointed you to initiator lists because each initiator is assigned a list of classes that it can run. Therefore if you pick a job class which only runs on one initiator you may wait a long time before your job runs.

You must assign a class to use in your JCL. You will need to know which class to use insofar as classes are generally assigned specific attributes depending on who or what is meant to use them. For example, there are classes with; a CPU limit, tape only limitations (ie. you must allocate a tape unit in the job), night batch (only runs after a certain time eg 6.00pm), high performance, etc... Often, a site will segregate classes into those which are only to be used by system tasks eg Started Tasks and those available to the masses.

I would suggest you speak with an MVS Systems Programmer about which class to use as they will know which ones are meant for general development or production use.
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My opinions are exactly that.

[ANDY]

Hi Maton_Man:

Thank you.

Regards,

Andy
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cheers,
Andy