As the result of a RECONCILE VOLUMES command, the volume shown was reported by the target server and it has no matching volume on the source server.
The reconciliation process continues.
The database on either the source or target server has been regressed by either a RESTORE DATABASE operation or some system facility external to the server. Investigate the action that caused one or both of the databases to be regressed to there current condition. If a newer database images exist for that server, consider restoring the server to that point in time. If the condition of the database on each server is acceptable and the RECONCILE VOLUMES command was issued with FIX=NO, reissue the RECONCILE VOLUMES command with FIX=Yes to have the volume deleted from the target server.