OVERLORD
--------

OVERLORD runs as a detached procedure on the system and performs the following
functions -

1. Deletes unauthorized jobs from a queue (in our case, the queue SYS$CONTROL
   is reserved for system use).
2. Monitors the free space on mounted files-11 disks and warns operators when
   it drops below a predefined level, and sends system wide broadcasts if it
   drops below a further level.
3. Prevents interactive allocation of tape drives (which slows down tape job
   throughput) by sending the user a message asking him to give up the drive
   before it deletes the process.
4. Gathers statistics on system resources and dumps them to a file at regular
   intervals (not yet operational under V3 - V2 procedures are included with
   the extension .V25).

OVRLRDBLD.COM builds the OVERLORD and CONTROL programs.  CONTROL creates the
process running OVERLORD and can be used to control OVERLORD functions.  Both
programs reside in SYS$SYSTEM.  Most installation dependent data is in the
include file COMMONDEF.FOR (except for the data statement with users allowed
to use SYS$CONTROL) and this can be edited to reflect local requirements.
STARTOVER.COM can be called from SYSTARTUP.COM to start OVERLORD running when
the system is bootstrapped.


						Chris Chaundy
						Melbourne State College
						c/- Computer Centre
						University of Melbourne
						Parkville, Victoria. 3052
						Australia