Recreating Data Sets

Under certain special circumstances, Control-M/Tape allows an existing data set to be recreated (meaning, overwritten).

The following restrictions apply:

• 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 has been specified for either Control-M/Tape installation parameter RECREATE, or statement DO RECREATE in a Control-M/Tape rule.

There is an exception when the job that is accessing the data set is the same job that created the data set (that is, the job name and job ID of the job that is accessing the data set match the job name and job ID of the job that created the data set). In this case, the expression DISP=NEW is acceptable.

Note: Data sets with permanent retention are recreated only if P is specified for installation parameter RECREATE or statement DO RECREATE in a Control-M/Tape rule.