Swapping Multiple Off-Site External Drives

[dnanian]

Make sure that each of these drives is reformatted and repartitioned as needed: don't use them out of the box. I'd also strongly suggest that you name these drives more uniquely so you don't get confused, and don't name them with numbers at the end - that's a convention used by OSX to identify identically named drives, and doing it yourself is a mistake.

SD! won't "ignore" scripts for drives that aren't there. It'll give an error for each one that isn't present. But it won't do "something it shouldn't".

Hope that makes sense.