You've got me beat. My RHEL3 box at ServerMatrix is only up to 423 days of uptime.
I should probably apply a kernel update, but meh.
At home, I actually run into trouble with TOO MUCH uptime on my DSL modem and wireless router. Shortly before I ditched my desktop for a laptop, I spent a small fortune on an enormous UPS. 1500va. Unfortunately, as I said, laptop. So for lack of a better use for the UPS, it powers my DSL modem and WiFi router.
Thing is, the devices use virtually no power at all. So when the UPS goes into battery mode, it can go for 6 hours until dying. The UPS itself is probably drawing more power from the batteries than the devices are.
They also make a battery addon that gives 3x the runtime for my UPS. Seeing how light my load is, I might be able to do better than 3x. The price keeps dropping, and even though I don't needed, I'm so tempted to buy it just to see if I can get 24 hours of battery backup
Of course, no laptop will last 6 hours, certainly not mine. But I have indeed used the internet during a power outage. The power goes out, as do the lights, but my laptop and internet just keep going, so I just keep surfing until it comes back on.
Anyhow, because of the insane battery power for my tiny little DSL modem and WiFi router, they esentially never reboot or shut down. And it seems that after 6 months of uptime, my DSL modem stopped working and needed a reboot