any good UPS for a Fedora server

[Bruno Wolff III]

On Wed, Nov 14, 2007 at 16:20:56 -0800,
  Konstantin Svist <fry.kun at gmail.com> wrote:
> 
> Also tried to tackle the problem with power not coming back on its own.
> The problem appears when the computers shut off but a little bit of 
> power remains in the UPS batteries. The computers have a BIOS setting to 
> boot as soon as power is connected - but if the UPS is not drained, the 
> power is never really cut, so the result is that they don't boot if the 
> power comes back.

nut handles this for most UPS'. There are some models that don't support
the proper command, but you can check for those before buying one.
It does this by having the UPS cut power to the load even though there
is still battery power. The command is issued with a time delay that is
supposed to give enough time for shutdown to complete after the command
is issued.