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How are you guys monitoring power outages? My servers are on UPS's but they only last 30 minutes or so before they drain those batteries. I'd like to write (or find) some type of script that will somehow monitor a device (that is NOT on backup power) and when that device fails, I would get a text message and e-mail to my blackberry telling me power is out.
My hope, is that I could SSH in if a power failure occurs and I could shut the boxes down safely.
What kind of UPS do you use? If they're individual to the servers they may have built in facilities for notifying systems that power is down and allow you to use that notification for doing an automatic graceful shutdown of the server.
A simple ping test would tell you if servers are unreachable. If you have multiple servers that are unreachable that weren't on UPS you could have each of them page you (send email to your cell phone so it shows up as text message). Seeing loss of ping on multiple servers would be an indication something has gone wrong.
Of course you'd have to insure your path into the remote console (e.g. KVM, network switch etc...) was also on battery protection or you wouldn't be able to get in. Here again you could script it so that the servers on UPS are the ones doing the ping tests of the other servers and have them shutdown automatically if they see multiple other servers already down.