General Information

When Y (Yes) is specified, Control-M/Tape allows an existing data set to be overwritten if all of the following conditions are met:

• This is the last data set on the volume.
• The data set name is the same as that of the existing data set.
• The disposition is OLD (DISP=OLD).
• Y or P was specified for either the Control-M/Tape installation parameter RECREATE, or the DO RECREATE statement in a Control-M/Tape rule.
• The data set was not assigned permanent retention.

  However, there is an exception when the job that is accessing the data set is the same job that created the data set (meaning, a different step in the same job). In this case, the expression DISP=NEW is acceptable.

If no DO RECREATE statement is specified in a rule, the value specified for Control-M/Tape installation parameter RECREATE determines whether the data set can be recreated.