I enjoy a 320 GB tricky drive. Can I designate a division of that to rescue, as I own no reclamation drive?

Or can I use a recouping drive on another computer?

I enjoy a 320 GB tricky drive. Can I designate a division of that to rescue, as I own no reclamation drive?

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You can, using a fence, but what'll really happen is that it'll one and only be a recovery from accidential deletion or system problems. It won't protect you from a disk fiasco.
Yes, but if you only own one HD, you need to barrier it, and put it on there. (the second partition)