Subj : how to shutdown os/2 from remote
To   : Michael Balcos
From : Mike Luther
Date : Fri Mar 11 2005 08:05 am

Michael ..

 MB> I would like to know how the shutdown OS/2 Warp 3
 MB> Connect from a remote Linux box. My power daemon is 
 MB> running under the Linux box and I would like the OS/2 
 MB> system be shutdown also when the batteries go low. 
 MB> Could you help me, please? :)

I've watched the other replies so far.  If this UPS is an APC Smart version, 
could you perhaps go the other way and use the OS/2 box for the key shutdown 
focus, then export that back to Linux instead?

Maybe it is easier to find external software which will do that safely with 
Linux, rather than OS/2.  It is for darned sure that if you don't shut down 
OS/2 cleanly, you are really inviting file system corruption.

I'm not saying I know how to do the Linux reverse course like this. Just 
wondering out loud how it might be done.

                       Turn your hat around now!

Another thought strikes my mind based on what I have running at remote sites 
here and there with OS/2.  I've been using APC's UPS equipment for many years.  
As an example, one site uses a long older and re-batteried twice AP1250RM rack 
mount UPS with the accessories and so on based with it. However, in that there 
is no monitor or printer on when the site is has nobody there, the actual power 
for the computer itself is very low.  The APC UPS will hold that site up for, 
gosh, close to a day without power,in that we are only talking of supporting 
the control computer and critical modem phone line support when unattended.

In more than ten years I've only seen one power outage which ever was longer 
than that for which the site didn't auto-recover, or .. for the really critical 
REA support issues, I wasn't able to get there when I was TDY elsewhere for 
professional work!

That said, on the reboot, after the line comes back up, there are hardware 
solutions that can be run on the common phone line.  They get you a relay 
contact closure which can key off the reset line on the computer to let you 
control the reboot remotely if you need that.

You might ask, "Why is he rambling about all this?"  Simple.  Today, at Best 
Buy or Circuit City here in this central Texas town in College Station, you can 
buy a roughly 1000W plus APC Backups for under $120 US. If your box can be 
left, when you are not there, with no monitor or other high wattage stuff on, 
you just might be able to support the OS/2 box separately for most of a whole 
day for less trouble than you are contemplating.  Separating the power 
protection for the OS/2 box might really be an improvement.  In the case of the 
Smart UPS versions, as best I recall, there is a publicly available control 
monitor program out there on Hobbs, similar to the the APC for-real version for 
OS/2. Combined with a PROPER shutdown tool for the OS/2 system, you'll avoid 
the real mess of file corruption.

As Will Honea can tell you, as well as what I've seen, if you happen to get a 
hit that chunks in a really bad duplicate file chunk on an fnode, if you are 
LUCKY, you can 'edit' the file and append to it to clean up the mess.  If you 
are unlucky, you get to back up the whole partition minus that file, reformat 
it, and re-install all the stuff minus that corrupt bit, which is a mess, big 
time.

Herbert is telling you very good advice, in my humble opinion.  Be careful.


--> Sleep well; OS/2's still awake! ;)

Mike @ 1:117/3001

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