"Helping" Control-M/Restart

A basic assumption of Control-M/Restart logic is that the user has not assisted the restart process in any way.

Control-M/Restart is designed to restart exactly the same job. Any modifications made by the user make the job into a different job. If modifications are made, a successful restart of the job cannot be guaranteed. Therefore, you must be careful not to change the JCL, especially in the following ways:

• modifying the name or generation number of a data set
• adding and deleting steps

Exceptions include changing the file size in response to a space abend, for example, Sx37, or changing the name of an input data set. In these cases, you can perform the changes.

You must also not delete or move relevant files, unless absolutely necessary, as in the case of disk damage.