IBM Mainframe Forum

Scenario:

You have an online application without MQ and DB2 and it updates a VSAM file, and you also have a Batch job that updates this file.

Questions:

How to make sure job runs 24 hours.
How to make sure that both these files are synced

the question as asked does not make any sense ...

How to make sure job runs 24 hours.

which job are You referring to ?

if the online and the batch update the same file

How to make sure that both these files are synced

why two files ?

if You want good answers learn how to post clear questions

and ...
DO NOT ASK THE SAME QUESTION ON MULTIPLE FORUMS !

I can only see reference to ONE dataset, where is the second one ???

Sorry that is a confusing question I posted. But is it possible to run a batch job for 24 hours.

Yes, but probably not through use of the TIME parameter.

Easy - just put an infinite loop into one of the programs being executed. But you would need a very good reason to do so because you will be taking up resources that could be used by other jobs.

As NicC says, it is not difficult at all.

As I write this, I have a job that started November 5 at 1 PM. It does things at specified times: 23:55:00 and 23:59:45. The remainder of the time it's waiting on the clock. So far it has used 3.23 seconds CPU.

I have another job, a started task, started September 10 at 10:46. Once an hour, on the hour, it writes a message to the operator console,



The first message was written when it started,

Its intended audience is an analyst examining the SYSLOG.

Have to go.

I don't see the relevance of NOT having MQ or DB2? There are probably a lot of other products not involved.

I suspect you're asking about maintaining data integrity in the one VSAM dataset, not two datasets? If so, use of the correct VSAM shareoptions together with an ENQ/DEQ mechanism used by the updating applications would be an approach. See https://www.ibm.com/support/knowledgece ... 0/crso.htm

Garry.

Thank you everyone for the excellent answers!