  File copy failure? (unspecified error) 
 The Question is:
 
I was suprised when a log file of a command procedure displayed that files
 could not be copied to a directory due to it being full.  A "show dev d". of
 course displayed tons of free space.
 
I probably missed something, but is there a limit to the number of files a
 directory can have?  I really did not think that there was.  The number of
 versions, yes, but not quantity.  Especially, since disk quotas are not turned
 on or established.
 
Is there some system parameter I have not looked at yet to determine what the
 default value is?
 
Thanks in advance.
 
 The Answer is:
 
  A disk full error means that the disk is full -- this can be a transient
  state, quite obviously.
 
  There are various other errors that can result from a full index file,
  due to too many files for the size of the index file and/or due to high
  levels of disk fragmentation.
 
  There are also various errors -- errors expanding directories or creating
  or extending other contiguous files -- that can result from insufficient
  contiguous free space on the disk.
 
  There is no hard limit on the size of a directory nor on the number of
  files stored within a particular directory -- a directory file is little
  more than a list of files, the structures related to files are stored in
  files in the [000000]000000.DIR master file directory (MFD).  There are
  performance implications on large directories, with directories larger
  than 128 blocks performing significantly better on OpenVMS V7.2 and
  later -- this due to changes in the directory caching and particularly
  due to improvements in the directory I/O processing.  (The discussion
  of 128 block directories is NOT a hard limit on any OpenVMS release.)
 
  Without specifics of the error message seen, there can be no specific
  answer to the question.  Please contact the Compaq Customer Support
  Center.
