System Erasure of Data

If DASD data erasure is in effect and you use any of the following items, the system overwrites the entire data set area:

The DELETE subparameter in the JCL DISP parameter of a data definition (DD) statement
The TSO DELETE command (for non-VSAM objects)
The SCRATCH macro
The SCRATCH control statement for the IEHPROGM utility program
The access method services DELETE command

For a sequential, partitioned, PDSE, or VSAM extended-format data set, if DASD data erasure is in effect, the system also overwrites the released area when you use any of the following:

RLSE subparameter in the JCL SPACE parameter in a DD statement to which a program writes
Partial release option in the management class
PARTREL macro