Shutting Down During Power Failures

[Grumps]

I'm wondering what everyone is doing when there is a powerfailure. Assuming that you have UPS, how are you powering down?

[xenoxaos]

I usually don't worry about power failures. Most of my important plugs are on UPSs and use journaled filesystems. The one that's not, I usually don't care too much. There's no important data on there, it's backed up, and can be reimaged in a few minutes if need be. The UPSs can run the plugs for upwards of a few hours.
If you are in an area that gets frequent, long power outages, your UPS should have a usb/serial port on it. You can configure your plug to power down after X minutes without power.

[WarheadsSE]

For doing that, I would suggest apcupsd, and open source UPS monitor. I use it at work to control that state of my clusters on dual, redundant UPSs, as they can obviously survive one going out.