Re: Auto shutdown (on power down) box

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Article #379

#379

From: David Collier-Brown
Date: Sat, 08 Sep 1990 17:58

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alan@curly.Viewlogic.COM (Alan Medsker) writes:
>I've got an Epoch-1 Infinitestorage NFS server, and a UPS that it runs
>off of.  I'd like to find a way to have the server shut down
>gracefully unattended when the power has been down for x minutes.

An almost pure-software approach is the following --
	wire a ups-delivering-power signal to dtr on a serial port
	take the getty off that port
	write a program to watch the port and implement your
	shutdown policies based on the period the line has been asserted.
--dave
-- 
David Collier-Brown,  | davecb@Nexus.YorkU.CA, ...!yunexus!davecb or
72 Abitibi Ave.,      | {toronto area...}lethe!dave or just
Willowdale, Ontario,  | postmaster@{nexus.}yorku.ca
CANADA. 416-223-8968  | work phone (416) 736-5257 x 22075

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Message-ID: <14904@yunexus.YorkU.CA>

Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!news-server.csri.toronto.edu!torsqnt!lethe!yunexus!davecb

References: <1990Sep7.174211@curly.Viewlogic.COM>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!news-server.csri.toronto.edu!torsqnt!lethe!yunexus!davecb
From: davecb@yunexus.YorkU.CA (David Collier-Brown)
Newsgroups: comp.sys.misc
Subject: Re: Auto shutdown (on power down) box
Keywords: UPS power shutdown unix epoch
Message-ID: <14904@yunexus.YorkU.CA>
Date: 8 Sep 90 17:58:12 GMT
References: <1990Sep7.174211@curly.Viewlogic.COM>
Organization: York U. Computing Services
Lines: 16

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