Save to multiple hard drives with one save?

Hello there. I was wondering if there's a way where you can save to multiple hard drives with one save?

This would be mainly used for my graphics work. You see, I often need to take my hard drive into university, thus I edit my hard drive work so when I take it home I have to copy work of up to 15GB. I know I can also say don't replace but I often edit same name files so they won't be updated.

I hope this makes sense.

Regards, James George Dunn.

No way to do it unless you had some sort of a raid setup for multiple hard drives on one machine. (If I'm understanding your question correctly.)

See the following Wikipedia article on RAID: Link

Regards.

too much of a hassle to use raid for this imo ... also I'm not sure how raid works when one drive in internal and the other external (meaning sata vs usb/fw)

EDIT:
you can maybe create a script, or use Automator, that you would run to copy everything when you connect the drive?

Plus I'm not sure it would work well to have a RAID (even a mirrored RAID) that you can break up whenever you want.

Better to just use some sort of backup/sync software, which I'm not too familiar with.