North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Operate until failure
On Mon, Jan 08, 2001 at 09:58:07AM -0500, Paul Timmins wrote: > On 8 Jan 2001, Sean Donelan wrote: > > I'm aware of a variety of proprietary software shutdown programs associated > > with UPS vendors. But I'm wondering do any "open standards" exist for > > initiating soft shutdowns? > Almost all UPS's on the market twiddle with the DTR and RTS signals on the > serial port when a power failure or an imminent battery failure. You can > generally twiddle a pin on the serial cable to shut it off as well. > For APC smart UPS devices, people have reverse engineered the protocol to > communicate in smart mode and get battery voltages and the like. Do a > search for "linux UPS daemons APC" and you should find something of use > (since you will probably have to read the source code to figure out the > protocol, it helps if you know C) And if you are running a late-model linux (preferably RedHat), you can download APC's own "award-winning PowerChute Plus" software for linux from their website. It seems to be identical to PowerChutePlus running on any other platforms, except that the interface is through X86. -- Henry Yen Aegis Information Systems, Inc. Senior Systems Programmer Hicksville, New York
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