Label=(label-name-list)

    Specifies the 1- to 6-character string with which the volumes
    of the backup file have been labeled. The Label qualifier is
    applicable only to tape volumes. You must specify one or more
    label names when you use the Label qualifier.

    You can specify a list of tape labels for multiple tapes. If you
    list multiple tape label names, separate the names with commas,
    and enclose the list of names within parentheses.

    In a normal dump backup operation, the Label qualifier you
    specify with the RMU Dump Backup_File command should be the same
    Label qualifier as you specified with the RMU Backup command that
    backed up your database.

    If no label is specified, the system will internally generate one
    consisting of the first six characters in the backup-file-spec
    parameter.

    See the Oracle Rdb Guide to Database Maintenance for information
    on tape label processing.

    The Label qualifier can be used with indirect file references.
    See Indirect-Command-Files for more information.