[3818] in RedHat Linux List
Re: UPS reccomendations
daemon@ATHENA.MIT.EDU (Mike Schout)
Mon Nov 11 01:55:02 1996
From: Mike Schout <mike@Joker.tamu.edu>
To: redhat-list@redhat.com
Date: Mon, 11 Nov 1996 00:53:13 -0600 (CST)
In-Reply-To: <199611110219.VAA08225@skyline.rtp.nc.us> from David Myers at "Nov 10, 96 09:19:36 pm"
Reply-To: m-schout@tamu.edu
Resent-From: redhat-list@redhat.com
> 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.
If your referring to apcd, which is what we are using with our APC smart
UPS's, I dont see a problem with it. It does not completely HALT the os,
but it comes about as close to it as possible. It turns off networking,
unmounts file systems (this is the important one), and then will turn the
UPS off. I think that the reason it doesnt completely halt the OS is
because it needs to still send the signal to turn off the UPS. This is
essential for out system, because if it doesn not get powered off when
the system goes down, it will not recognize the SMC ethernet card when
the machine comes back up. Must be something in the AST bios that is
screwy with the card :). Anyways, we have not had any problems with it.
The machine comes up cleanly, and all filesystems are intact and CLEAN on
a boot after powerfailure...
Just my 2cents..
Mike
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