[hnlmorg]

Switching gear was slower and laying new fibre wasn't an option for your average company. Particularly not point-to-point between your DB server and your replica.

So if real-time synchronization isn't practical, you are then left to do out-of-hours backups and there you start running into bandwidth issues of the time.

[peteforde]

Never underestimate the potential packet loss of a Concorde filled with DVDs.