  Seeking BACKUP documentation? 
 The Question is:
 
In backing up DLT tape to disk, I get insufficient space. How can I backup
 selected files. Also how do I find out how much space I have available on my
 hard disk?
 
 
 The Answer is:
 
  Please see the BACKUP documentation in the system manager's manual
  for details on how to use BACKUP.  Please also see the information
  in the OpenVMS FAQ on BACKUP and /NOALIAS, as as well as the
  information on (the difficulty of) estimating the amount of space
  remaining on a magnetic tape or other sequential media.
 
