User_Support

   When you enable ODS-5 volumes on an OpenVMS cluster, you should
   make users aware of the following characteristics:

   o  Extended file names caooonot be used on ODS-2 volumes.

   o  Case is determined by the first instance of an extended file
      name.

   o  There are special rules for case preservation and case
      blindness when using extended file names.

   o  Some system utilities and DCL commands have a /STYLE qualifier
      to control the display of file names.

   o  Error messages can vary when different parse style are used.

   o  Extended file names are not visible from a VAX system.

   The OpenVMS System Manager's Manual, Volume 1: Essentials
   contains information for setting user's expectations of Extended
   File Specifications.