Experience with UPSes on USB?

[Bruce Dawson]

On Fri, 2005-04-22 at 10:12 -0400, Ted Roche wrote:
> I've set up a couple of UPSes using DB9 serial ports and the Network 
> UPS Tools (http://www.networkupstools.lrg) pretty successfully. I've 
> got a client with a small machine he wants UPS'd, and wondered if 
> anyone had experience with the USB-based interfaces - there's one on 
> sale cheap at Best Buy this week. The NUT package claims to support 
> them using the "experimental" hidusb drivers. "Battery backup" and 
> "experimental" don't seem like phrases I want to combine in a 
> production business system...

I've had more problems than I care to think about with USB on 2.4
kernels. They appeared to be mostly hardware vs. driver problems, but
there appeared to be some USB vs. PCI problems too.

2.6 kernels are more reliable, but seem to have other problems
(especially w/mounting usb-storage devices).

If possible, I would stick with serial interfaces for now.

--Bruce
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