'just' run a ZFS pool? That's a storage setup anyway, not a backup method. @Scilly.Suffolk can you be more specific on how much data, what kind, how many machines, OS, need for incrementals etc?
Yes, it's a storage method, but you can cycle out drives to achieve a duplicate of the ZFS pool with correction for data corruption and drive redundancy.
'just' run a ZFS pool? That's a storage setup anyway, not a backup method. @Scilly.Suffolk can you be more specific on how much data, what kind, how many machines, OS, need for incrementals etc?