o  To use the RMU Copy_Database command for a database, you must
       have the RMU$COPY privilege in the root file access control
       list (ACL) for the database to be copied or the OpenVMS SYSPRV
       or BYPASS privilege.

    o  When you copy a database into a directory owned by a resource
       identifier, the ACE for the directory is applied to the
       database root file ACL first, and then the Oracle RMU ACE is
       added. This method is employed to prevent database users from
       overriding OpenVMS file security. However, this can result in
       a database which you consider yours, but to which you have no
       Oracle RMU privileges to access. See the Oracle Rdb Guide to
       Database Maintenance for details.

    o  The RMU Copy_Database command provides four qualifiers,
       Directory, Root, File, and Snapshots, that allow you to
       specify the target for the copied files. The target can be
       just a directory, just a file name, or a directory and file
       name.

       If you use all or some of these four qualifiers, apply them as
       follows:

       -  Use the Root qualifier to indicate the target for the copy
          of database root file.

       -  Use local application of the File qualifier to specify the
          target for the copy of one or more storage areas.

       -  Use local application of the Snapshots qualifier to specify
          the target for the copy of one or more snapshot files.

       -  Use the Directory qualifier to specify a default target
          directory. The default target directory is the directory
          to which all files not qualified with the Root, File,
          or Snapshot qualifier are copied. It is also the default
          directory for files qualified with the Root, File, or
          Snapshot qualifier if the target for these qualifiers does
          not include a directory specification.

       Note the following when using these qualifiers:

       -  Global application of the File qualifier when the target
          specification includes a file name causes Oracle RMU to
          copy all of the storage areas to different versions of the
          same file name. This creates a database that is difficult
          to manage.

       -  Global application of the Snapshot qualifier when the
          target specification includes a file name causes Oracle
          RMU to copy all of the snapshot files to different versions
          of the same file name. This creates a database that is
          difficult to manage.

       -  Specifying a file name or extension with the Directory
          qualifier is permitted, but causes Oracle RMU to copy
          all of the files (except those specified with the File
          or Root qualifier) to different versions of the same file
          name. Again, this creates a database that is difficult to
          manage.

       See Example 8.

    o  You cannot use the RMU Copy_Database command to copy a
       database to a remote system or to an NFS (Network File System)
       mounted file system. The RMU Copy_Database command allows
       you to create a copy of a database on the same node as the
       original database.

    o  You cannot disable extents of snapshot (.snp) files.

    o  The file and area qualifiers for the RMU Copy_Database command
       are positional qualifiers, and if placed randomly, could
       be ignored or produce unexpected results. See the Command_
       Qualifiers help entry for more information on positional
       qualifiers.

    o  There are no restrictions on the use of the Nospams qualifier
       with mixed page format storage areas, but the use of the
       Nospams qualifier typically causes severe performance
       degradation. The Nospams qualifier is only useful where
       updates are rare and batched, and access is primarily by
       database key (dbkey).