hpux man page for sync

sync(2) 							System Calls Manual							   sync(2)

NAME
       sync, lsync - update disk

SYNOPSIS
DESCRIPTION
       causes  all information in memory that should be on disk to be written out.  This includes modified file system meta-data and delayed block
       I/O.

       It should be used by commands and programs that examine a file system, such as and so on.  It is mandatory before a shutdown.

       The writing, although scheduled, is not necessarily complete upon return from

       In some HP-UX systems, may be reduced to a no-op.  This is permissible on a system which does not cache buffers or in a system that in some
       way ensures that the disks are always in a consistent state.

       is  a deprecated system call that is currently functionally identical to HP-UX kernel support for it remains only to aid compatibility with
       very old HP-UX binaries.

AUTHOR
       was developed by HP and AT&T Bell Laboratories.

SEE ALSO
       sync(1M), fdatasync(2), fsync(2).

STANDARDS CONFORMANCE
																	   sync(2)