Re: Practical question
At most datacenters I've worked with entire boxes are swapped out - the broken one taken away for further examination/repair/exchange/disposal. As long as they have nice self-sealing connectors for the plumbing they'll be fine.
The boxes will be substantially more dense than normal ones though - the oil will be heavier and they appear to be packing a lot more components into the same volume than a vanilla box... Perhaps professional wrestlers could do the job - they should be well practiced in grappling with heavy oily units. :)
Biting the hand that feeds IT
