Snapshots=(Allocation=n,File=file-spec)

    Allows you to specify a new snapshot file allocation size, a new
    snapshot file location, or both, for the storage area to which
    the qualifier is applied.

    Use the Allocation=n option to specify the snapshot file
    allocation size in n pages; use the File=file-spec option to
    specify a new file location for the snapshot file associated with
    the area being moved.

    Note that when you specify a new file location for the snapshot
    file, the snapshot file is not actually moved; instead, Oracle
    RMU creates and initializes a new snapshot file in the specified
    directory. However, if a snapshot file is accidentally deleted or
    becomes corrupt, using this qualifier is not the recommended or
    supported method for re-creating the snapshot file. Use the RMU
    Repair command instead. See the Repair help entry for information
    on using the RMU Repair command to re-create and initialize a
    deleted or corrupted snapshot file.

    If the keyword Allocation is omitted, the original allocation is
    used, not the storage area's current allocation size.

    You cannot specify a snapshot file name for a single-file
    database. When you create a snapshot file, Oracle Rdb does not
    store the file specification of the snapshot file. Instead, it
    uses the file specification of the root file (.rdb) to determine
    the file specification of the snapshot file.

    See the Usage Notes for information on placing a snapshot file on
    a different device or directory when your database is a single-
    file database and for information on how this qualifier interacts
    with the Root, File, and Directory qualifiers.

    The Snapshot qualifier is a positional qualifier.