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DEADMAN.DOC
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1996-01-30
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DEADMAN, A Bitchin TSR
DEADMAN is part of KRONOS Task Processing System. If you are running
command line applications from unattended workstations you should check
out a copy of KRONOS. It's the best task scheduling system I've ever
used.
INDISPENSIBLE utility if you run command line utilities in an unattended
mode. Easily one of the most useful programs I have ever come across
when building 24hr, high-uptime, no-humans-around systems.
Example:
You have a machine that runs in a remote area that needs to be on-line
all the time. (e.g., MS-Mail gateway, any dos/text mode data
collector, alpha page server, network monitors...) DEADMAN, a TSR, is
loaded with the /Sx option. If the station does not update video memory
in x minutes, then the machine gets rebooted after a 60 second warning.
Now, if the machine takes a network hit, DEADMAN will recycle the
machine when the timer expires. Works just fine with DOS critical
errors. (Abort, retry)
Optional switches:
/Sx Reboot if no Screen changes happen in x minutes
/Ax Reboot if no Activity (screen, keybrd, file) happen in x mins
/Cx Reboot if Counter not reset in x minutes (with /R option)
If you run ANY command-line applications and you need a reliable way
to keep it up ... download this thing now!
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To start Deadman, use one of the following three parameters:
Deadman /Sx Reboot if no Screen changes happen in x minutes
Deadman /Ax Reboot if no Activity (screen, keybrd, file) happen in x mins
Deadman /Cx Reboot if Counter not reset in x minutes (with /R option)
Example: "deadman /s60" will reboot after one hour of no screen changes
Use these options after Deadman has already been loaded:
Deadman /R Reset counter (if Deadman was loaded with /C option)
Deadman /U Unload Deadman from memory
After running deadman, you can check its errorlevel in a batch file:
Errorlevel 1 means deadman is already installed (for /S /A and /C options)
Errorlevel 2 means deadman cannot be installed (e.g., not enough memory)
Errorlevel 3 means deadman /R or /U failed (can't reset timer or unload)
Personal Experiences
~~~~~~~~~~~~~~~~~~~~
I've been using DEADMAN for the past year. Works EXTREMELY well.
I've installed at least 20 industrial data collection systems using
net-connected obsolete PCs. I've not yet encountered any situations
were DEADMAN caused problems for the foreground applications. I've
even used this version when I needed to launch a Windows app. (sure,
I was desperate, I admit it)
If you are using PCs to monitor things and run them in an unattended
fashion, check out a copy of KRONOS Task Processing System. It's a
product written by the same guy. I used it in harmony with DEADMAN
and I've built some sweet data collection/network monitoring systems
with them.
If you want to learn more about KRONOS, check out KRONOS.DOC
If you would like more information about KRONOS or to register your
copy of DEADMAN, call 800 575 6816 or complete the ORDER.FRM and
fax/mail/email today. You can obtain a full KRONOS at no charge
if you fax a letter requesting such to the number on the order
form.
Try it, you will not be sorry!