Re: rsync on block devices? (was Re: Disabling/bypassing UUID on Ubuntu Trusty)

"Les Kitchen (LUV)" <ljk+luv@ljk.id.au> writes:

But building on this idea, you could image a scheme where you keep block-checksums (for some reasonable size of block) for a device, and when the time came, just transfer changed blocks.

At that point, just use the built-in btrfs/ZFS equivalent.