You are running the DFSMSrmm EDGUTIL utility with the MEND parameter for volume information. DFSMSrmm found an existing stacked volume with an incorrect count of the volumes contained on the stacked volume. DFSMSrmm corrects the count of contained volumes.

In the message text:

volser

This is the volume serial number of the stacked volume.

wrong_count

This is the count from the stacked volume record.

correct_count

The count of the volumes with this stacked volume named as their container.