(1) Multiple Backup Devices.
In all I've read about using an external HDD as a dedicated location for a full server backup, it says that one advantage of this location choice is that multiple devices can be used, sequentially I suppose, to make offsite storage easier.
How, practically, is this done? Suppose i'm backing up to a Western Digital Essentials HDD. At the outset of using Server Backup would I have one of the WD device USB connected to the server, and after the first backup is completed, just unmount and disconnect it and connect the second WB to the same port?
What's the best practice here?
Variation. How would it be to have two dedicated backup devices connected to the server to different USB ports and schedule backing up to them at different times? I'm, not sure I see an advantage to this other than simplifying the relocation of the backup drives to offsite locations.
(2) What happens when the backup device is full?
I can't find mention of that anywhere. How are successive backup handled? Is the capacity of the drive sensed and the oldest backup deleted to make room for a new one if necessary?
(3) Are there any differences between 2008 R2 and 2012 R2 with respect to the first two questions?