[3789] in RedHat Linux List
Re: UPS reccomendations
daemon@ATHENA.MIT.EDU (David Myers)
Sun Nov 10 21:21:39 1996
From: David Myers <dem@skyline.rtp.nc.us>
Date: Sun, 10 Nov 1996 21:19:36 -0500 (EST)
To: redhat-list@redhat.com
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
Eric Smith wrote:
> 3) Smart. These have an EIA-232 serial interface or a network interface for
> SNMP. Usually they support dumb signalling also. Unfortunately some of
> the major manufacturers try to keep their serial protocols secret to
> force you to buy their expensive software (of which they have none for
> Linux anyhow). Fortunately people have reverse engineered enough of
> the protocol for the APC SmartUPS to make it work with Linux; there is
> a package called apcd. I'm not sure whether there is an RPM for it.
Someone made an RPM, but I caution those who install it that it
doesn't shut down your system properly. It contains a hard-coded
sequence of commands to halt the OS, rather than signalling the init
process to carry out an orderly shutdown. Not a good idea.
I'm exchanging mail with APC about licensing their UPS communications
code. If their licensing terms allow me to create a freely distributable
UPS daemon, I'll do it. If not, then perhaps I'll borrow the necessary
code from apcd.
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