Mainframe, MVS and zOS Discussion

How did you do the "restart"? There is a job card parameter to restart a job at a particular step, and job schedulers (such as CA-7) also allow restart of jobs. If you used the job card method, for example, then you skipped the CA-11 analysis and set up, which could cause GDG issues. I re...

Thanks for such a comprehensive explanation, Robert.

Much appreciate that,

So in case, someone needs a kind of processing, which needs to go to the start of the file -- sequential files are not a good choice but then other than VSAM -- what do we have?

Can we say that -- "01 Level" represents a "record occurrence" so every next 01-level is a next record. If tables are allowed at 01 level - we'll never know if it's "record-occurrence" or "a repetition of similar fields" in a single record!?

Hi,

What is the difference between paging & swapping, in MVS? Does the same apply to zOS?

Hi,

Are there any other operating system that supports mainframes other than zOS, OS/390 and MVS?

And are there any differences among them, if any?

Thanks,

Hi, A Job got abended because a dataset was not created in time. As the dataset created late, Job has taken yesterday's dataset and abended. Restarted the Job after the new dataset created but it failed due to GDG verification in CA-11 step. Now I resubmit the Job instead of restarting and this time...

Hi,

How many MAXIMUM Jobs can be submitted in a single JCL?

Hi,

Can I give more length for GDG than previous one?

Hi, I am trying to create PDS usign below JCL: //DISK1 DD DSN=QNQD.INPUT1.PDS,DISP= (new,CATLG,DELETE), // UNIT=SYSDA, // SPACE=(TRK,(25,10),RLSE),DCB=(RECFM=FB,LRECL=80,BLKSIZE=800), // DSORG=PO I can create the PDS successfuly here but I'm not able to create the member in the PDS it is giving BLDL...