Rename
    Norename

    The Rename qualifier creates and initializes a new .aij file and
    creates the backup file by renaming the original .aij file. The
    effect is that the original .aij file has a new name and the new
    .aij file has the same name as the original .aij file.

    The Rename qualifier sets the protection on the renamed backup
    file so that you can work with it as you would any backup
    file. You can specify the new name by using the Edit_Filename
    qualifier.

    When the Rename qualifier is used, the backup operation is faster
    (than when Norename, the default, is specified) because the
    duration of the backup operation is the total time required to
    rename and initialize the .aij file; the data copy portion of
    the backup (reading and writing) is eliminated. However, the disk
    containing the .aij file must have sufficient space for both the
    new and original .aij files. Note also that the .aij backup file
    name must not include a device specification.

                                   NOTE

       If there is insufficient space for both the new and original
       .aij files when the Rename qualifier is specified, after-
       image journaling shutdown is invoked, resulting in a
       complete database shutdown.

    The Rename qualifier can be used with both fixed-size and
    extensible journaling files.

    The Norename qualifier copies the contents of the .aij file on
    tape or disk and initializes the original .aij file for reuse.
    The Norename qualifier results in a slower backup operation (than
    when Rename is specified), but it does not require space on the
    journal disk for both new and original .aij files.

    The default is Norename.