Hi there! I have a bit of a hard drive problem: I have been using a 1TB external hard drive for backup of my Mac and for storage (two different partitions). For the backup I've been using Time Machine manually, so with automatic backup turned off. The thing is that I've just purchased another external hard drive (2TB), which I would like to use partly for storage backup from the 'original' external hard drive and for computer (internal hard drive) backup - and then for some extra storage but that's not relevant. Three partitions in total. Now, because this is tricky (for me at least) I've tried to visualise what the future constellation could look like - see attached picture. So my question is this: Is it possible to run two different backups via Time Machine? Backup 1 would be from the Mac computer to partition 2 on external HD 2. Backup 2 would be from external HD 1 to partition 1 on external HD 2. I find that manual use of Time Machine would be great for both backups. I would like to avoid having to 'make my own system' and manage/keep track of what I have and haven't backed up from the storage unit. I've read shortly about 'rotating disks' with Time Machine but that wouldn't be relevant here, as I see it. What I'm trying to do is not one source and two different destinations, but two different sources and two different destinations... Any input is much appreciated - thank you!