I have 2 o.s. (debian and windows 7) and I use both. They are stored on SSDs, so rather small in size (125GB/80GB), can I clone both of them on a single hdd (like in two different partitions) so that if one of my ssd is faulty, I just buy a new one, restore the o.s. from one of the 2 hdd partitions, plug the new ssd and keep working?
If yes, which software should I use? Possibly an open source/free one.