That seems to be kind of a joke, but I heard that the french CNES (spatial agency) is doing some huge database replication between two sites thanks to big trucks carrying the data once a month, because current network devices transfer rates do not allow them to do remote replication through the network. Or maybe the reasons to this method are not only technical but economical.
I have no detailed information on this, and it's more a rumour than a verified information, but should somebody know more on the subject, i'd be interested in hearing it.
but than you have to add cost of backing up and restoring labour time, and that's going to be a massive latency - if you ask me.
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GJ
