Hi! On a thread at another mailing list, someone mentioned that they, each day, alternate doing backups between two external usb drives. That got me to thinking (which is always dangerous) . . .
I have a full backup on usb external drive A, "refreshed" daily using rsnapshot. Then, every day, I use rsync to make usb external drive B an "exact" copy of usb external drive A. It seemed to be a good idea, since if drive A fails, I can immediately plug in drive B to replace it, with no down time, and nothing lost. But of course, any errors on drive A propagate daily to drive B. So, is there a consensus on which would be better: 1) continue to "mirror" drive A to drive B? or, 2) alternate backups daily between drives A and B?
