Initialization of the Error Recording Data Set (ERDS) in VSE

The VSE error-recording data set is called the system recorder file, or SYSREC(IJSYSRC), and is assigned the logical name IJSYSRC. SYSREC is created on the SYSRES volume during the first IPL following system generation. The SYSRES volume also contains:

The hard copy file (IJSYSHC)
The system history file (IFSYSHF)

In this book, SYSREC refers only to the system recorder file, or ERDS.

The operator creates and initializes SYSREC by issuing the IPL command SET RF=CREATE right after IPL and before the first //JOB statement.

Important: SYSREC is permanently assigned during IPL. The JCS ASSGN statement ignores any existing SYSREC assignments.

SYSREC consists of a header record after it is initialized. EREP Reference contain examples of the SYSREC header record.

You cannot reinitialize SYSREC without re-IPLing the system and reissuing the SET RF=CREATE command.

The EREP control parameter ZERO and the special EREP program IFCOFFLD merely zero out the data set; they do not remove the header.