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MIM0512

INVALID DSCB4 IN VTOC

Reason:

While processing an entry in the DDNAMES MIM file, an invalid DSCB4 was found in the volume table of contents (VTOC) on the volume on which the control file resides. The first byte of a valid DSCB4 should be X'F4'. CA MIM for z/VM ignores the indicated DDNAMES MIM entry and continues initialization.

Action:

The system programmer should verify the integrity of the VTOC on the volume on which the control file resides.