Re: Power
"Every few years it will tell you to replace the battery, which you do "live" without taking the PC down."
Must admit, it's genuinely never crossed my mind to do this, and I've always just made scheduled maintenance windows for clients.
I'm going to assume that this requires a UPS that supports hotswapping of the lead acid cell, with well insulated terminals etc, as the concept of the power dropping out while you've got your fingers around the loose terminals in all the UPSs I've seen is an....interesting one...KZZRT.
Not remotely suggesting that it's a bad idea, as I say, it's just literally never crossed my mind to do it while the power is still on - I feel I've been missing a trick, especially on sites where bouncing the server takes 30 minutes...
Steven R