nanog mailing list archives
Re: Operate until failure
From: Paul Timmins <pault () timmins net>
Date: Mon, 8 Jan 2001 09:58:07 -0500 (EST)
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) -Paul By popular request my signature has moved to <http://198.87.147.226/paulsig.txt> Paul Timmins paul () timmins net http://www.timmins.net/ "By definition, if you don't stand up for anything, you stand for nothing." ---Paul Timmins
Current thread:
- Operate until failure Sean Donelan (Feb 24)
- Re: Operate until failure Nathan Stratton (Feb 24)
- Re: Operate until failure Eric Whitehill (Feb 24)
- Re: Operate until failure Shawn McMahon (Feb 24)
- Re: Operate until failure Andy Walden (Feb 24)
- Re: Operate until failure Shawn McMahon (Feb 24)
- Re: Operate until failure Shawn McMahon (Feb 24)
- Re: Operate until failure Eric Whitehill (Feb 24)
- Re: Operate until failure Nathan Stratton (Feb 24)
- Re: Operate until failure Henry Yen (Feb 24)
- <Possible follow-ups>
- Re: Operate until failure Sean Donelan (Feb 24)
- Re: Operate until failure David Lesher (Feb 24)
- Re: Operate until failure Dalvenjah FoxFire (Feb 24)
- Re: Operate until failure bmanning (Feb 24)
- Re: Operate until failure Eric A. Hall (Feb 24)
- Re: Operate until failure Josh Richards (Feb 24)
- Re: Operate until failure Bennett Todd (Feb 24)