Move racks? Difficult you say? Not so. I watch people pull whole racks, disconnect them, move them a substantial distance and plug them back in. I've even seen it done by one person. And they are about to do it again. You can watch too if you want. These folk are going to move a bunch of stuff into whatever they wind up calling Node 3."What the hell is Charles talking about now?"
Well don't think IIS. Think ISS! Put your "container" in orbit. Now hold on. This has possibilities. Near zero G means that you have only mass to consider, not weight, when moving things. Access is even easier when needed. "To reach that damn connector I'd have to be standing on my head." No problem. I'm physically challenged myself. This could be a big help. The commute sucks.
A Geo-Sync data center (centre) has other advantages. Spinning disk drivers are mini gyroscopes anyway. Gravity increases the wear. That would be reduced. As to power, it all has to be solar! Think Green. Heat dissipation got you concerned? The vacuum of space to the rescue. I still think that at hot side/cold side Stirling engine would be practical given enough space. Then just look at your C-zero. Psychical security is a no-brainer.
Now planning ahead would be key. "Can you pop over and just add an additional drive to the HR server? These job losses are giving us a wee bit of log pressure." Your MTBF numbers had better stand up to real world, well off-world, usage.
OK, fun aside for now. There are down to earth practicalities for having your server complex movable. You need to put it on good shock mounts. I take earthquake preparedness seriously too. Properly done the center might survive even if most of the rest of the building does not.