sync

PURPOSE

     Updates the  superblock and writes buffered  files to the
     fixed disk.

SYNOPSIS
     sync


DESCRIPTION

     The sync command runs the  sync system primitive.  If you
     have to stop the system, you must run sync to ensure file
     system  integrity.   sync  writes  all  unwritten  system
     buffers  to disk.   This  includes modified  superblocks,
     modified  i-nodes,  delayed  block  I/O,  and  read-write
     mapped files.

     Note:   The writing,  although scheduled,  is not  neces-
     sarily complete upon return from the sync system call.

RELATED INFORMATION

     The sync  system call  in AIX Operating  System Technical
     Reference.