Requesting that DFSMSdss attempt to fix ESDSes with corrupted RDFs

Use the flag at offset X'57' to request that DFSMSdss attempt to fix entry sequenced data sets (ESDSes) that have record descriptor fields (RDFs) that incorrectly indicate repeated records. The values are:

X'00': DFSMSdss operates normally
Any other value: DFSMSdss attempts to fix the ESDSes during logical data set RESTORE processing when VSAM I/O is needed to restore the data set. DFSMSdss examines each RDF when using VSAM I/O to put records into an ESDS. If the RDF indicates incorrectly that it describes repeated records, it is modified to describe a single record. Message ADR925W is issued to indicate that modifications were done during the restore of the data set. The ADR925W message is also written to the console for use by automation.

To set the flag on dynamically, use the SET PATCH command to set the flag at offset X'57' to a value of X'FF'. To set the flag permanently, modify the sample JCL as follows:

//SYSIN DD *
NAME ADRDSSU ADRPATCH
VER   57        00
REP   57        FF