Vsam to used by both online and batch program

[meghakantha]

the scenario is like this. one KSDS file has to used by both online and batch program . what is the logic?

[Robert Sample]

the scenario is like this. one KSDS file has to used by both online and batch program . what is the logic?

As long as the KSDS data set is read-only to online and batch, there are no issues and allocate the file in batch with DISP=SHR. If you want online OR batch to update the data set, you will some issues but they can be resolved by using an enqueue / dequeue method in both batch and online. If you want online AND batch to update the data set, you will have major issues since CICS often holds the buffers for a period of time before updating the data set.

[gauthamnagpur18]

KSDS might be IAM file. IAM can be used by both online and batch.

[Robert Sample]

With the right SHAREOPTIONS, VSAM can be used both in online and batch at the same time -- as long as not more than one batch job or CICS region is attempting to update the data set; any number can be reading it. IAM is not required for this capability -- it is inherent in the SHAREOPTIONS used for the VSAM data set.