Density=density-value[,[No]Compaction]

    Specifies the density at which the output volume is to be
    written. The default value is the format of the first volume (the
    first tape you mount). You do not need to specify this qualifier
    unless your tape drives support data compression or more than one
    recording density.

    The Density qualifier is applicable only to tape drives. Oracle
    RMU returns an error message if this qualifier is used and the
    target device is not a tape drive.

    If your systems are running OpenVMS versions prior to 7.2-1,
    specify the Density qualifier as follows:

    o  For TA90E, TA91, and TA92 tape drives, specify the number in
       bits per inch as follows:

       -  Density = 70000 to initialize and write tapes in the
          compacted format

       -  Density = 39872 or Density = 40000 for the noncompacted
          format

    o  For SCSI (Small Computer System Interface) tape drives,
       specify Density = 1 to initialize and write tapes, using the
       drive's hardware data compression scheme.

    o  For other types of tape drives, you can specify a supported
       Density value between 800 and 160,000 bits per inch.

    o  For all tape drives, specify Density = 0 to initialize and
       write tapes at the drive's standard density.

    Do not use the Compaction or NoCompaction keyword for systems
    running OpenVMS versions prior to 7.2-1. On these systems,
    compression is determined by the density value and cannot be
    specified.

    Oracle RMU supports the OpenVMS tape density and compression
    values introduced in OpenVMS Version 7.2-1. The following table
    lists the added density values supported by Oracle RMU.

    DEFAULT    800       833        1600
    6250       3480      3490E      TK50
    TK70       TK85      TK86       TK87
    TK88       TK89      QIC        8200
    8500       8900      DLT8000
    SDLT       SDLT320   SDLT600
    DDS1       DDS2      DDS3       DDS4
    AIT1       AIT2      AIT3       AIT4
    LTO2       LTO3      COMPACTION NOCOMPACTION

    If the OpenVMS Version 7.2-1 density values and the previous
    density values are the same (for example, 800, 833, 1600, 6250),
    the specified value is interpreted as an OpenVMS Version 7.2-1
    value if the tape device driver accepts them, and as a previous
    value if the tape device driver accepts previous values only.

    For the OpenVMS Version 7.2-1 values that accept tape compression
    you can use the following syntax:

    /DENSITY = (new_density_value,[No]Compaction)

    In order to use the Compaction or NoCompaction keyword, you must
    use one of the following density values that accepts compression:

    DEFAULT    3480      3490E      8200
    8500       8900      TK87       TK88
    TK89       DLT8000   SDLT       SDLT320
    AIT1       AIT2      AIT3       AIT4
    DDS1       DDS2      DDS3       DDS4
    SDLT600    LTO2      LTO3

    Refer to the OpenVMS documentation for more information about
    density values.