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1993-02-15
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128 lines
NLMSentinel
NetWare File Server Automatic Reboot
and ABEND Trapper
Version 1.00, 1st December 1992
Author Jason Hart
ShareWare
NLMSentinel is designed to automatically reboot a
fileserver if it encounters any Abnormal termination
(ABEND) message. NLMSentinel will write a log file
containing the system console screen to a local disk, in
order to help track the problem at a later date.
It is intended that NLMSentinel be used in environments
where server up time is required to be maximised. Given
that a fileserver ABEND's, NLMSentinel traps the ABEND
error message and saves this to a user specified logfile
on a local disk. DOS must be present to perform the write
operation, if DOS is not present no logfile will be
created and Sentinel will not reboot the server unless
the override option (/L) was specified. This is too
ensure that the error message is not lost.
NLMSentinel should be used alongside AUTOREP.NLM. AUTOREP
is a companion NLM that will invoke VREPAIR.NLM and
automate the process of a disk repair if a volume fails to
mount at server startup time.
AUTOREP.NLM is available on NetWire or by contacting the
author via postal mail or on CompuServe.
By using NuMega's NETCHECK in combination with
NLMSentinel, an extra level of system protection can be
given. NETCHECK will trap all unusal memory access's but
in the event that the server decides to ABEND from bad
system parameters(NETCHECK doesn't stop this) NLMSentinel
will write the log and reboot the server. NetCheck is a
commercial product, copyrighted by NuMega Technologies
and is available by contacting them at (603) 889-2386.
=====================================================
OPTIONS
LOAD Sentinel <filename> <options>
<filename>
This MUST be a local drive. Preferrably a floppy so that
the disk may be removed to analyse the logfile without
requiring the server to be brought down. Alternatively if
it is stored on a local hard-disk, a number of utilities
are available which emulate DOS commands from the console
enabling the logfile to be copy from the console.
<options>
/R Do not write logfile, just reboot on ABEND.
/L If logfile write was not succesful - still
reboot.
====================================================
Installation
NLMSentinel is invoked by loading it from the fileserver
console. It should be copied to the fileservers SYS:SYSTEM
directory and then loaded like
:LOAD SENTINEL <options>
It may also be added to the systems AUTOEXEC.NCF.
====================================================
!! READ THIS !!
To obtain the latest version of SENTINEL and 12 months of updates,
send a cheque or money order for $35US to the below postal address.
Source Code
====== ====
If you would like to receive the original commented
source code to this application please send a cheque or
money order for $90US to:
Jason Hart
Post Office Box 92
Canterbury, Victoria, 3126
Australia.
If you have any suggestions, questions about the program
or customisations, they are welcome and I am reachable on
CompuServe at 100033,3202 or via the above address.
=========================================================
DISTRIBUTION
Feel free to distribute this program and documentation in
its original untampered state.
=========================================================
ACKNOWLEDGMENT
I wish to acknowledge the help of Ken Lowrie from Novell
Austin, for his contributions.
=========================================================
DISCLAIMER:
While all care has been taken in the development of this
product, you are using it AT YOUR OWN RISK. It has been
tested on different platforms and with a number of
testing tools to ensure that the product is stable. No
loss of any kind is accepted by the author arising from
the use of any of these programs. You are free to
distribute provided the program and text files are not
changed.
=========================================================