Partially echoing what was already said:
- Stick to APC
- Avoid the low end "workstation" models like the plain BackUPS.
As a minimum get a BackUPS-Pro. SmartUPS are better.
- Use the sizing app on the APC web site
- Careful of your mains power. Besides what was mentioned for
generators, accidentally chaining an APC UPS into AC provided
by a server room UPS can kill the downstream UPS.
- For controlled shutdowns on battery exhaustion, check out apcupsd.
- Decide whether your UPS will power one server or a few. If you're
powering a few, decide whether the control is master-slave (which
you can do with a serial/USB cable to the master, then network
to the slaves), or if you need the more expensive setup where the
UPS talks directly to multiple servers. I think the former is fine
(as long as your network switches are on the UPS), but ymmv.
Devin
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