Block level backup/storage/duplication
We're looking at ways to backup our SAN. We've got a nice little script which snapshots and copies our virtual machines and drops the machine image in a folder, so that part of it is fine. We just need a good way of storing the images without having to have 10s of TBs of diskspace.
Block level duplication (like windows SIS/VSS) seems the way to go. Can anyone point me in the right direction for linux based storage?
R1soft seem like they do what i need, but does anyone know of a free way of doing it?
To sum it up if i wasnt clear, i want to; Copy the machine images to a server, that server then find all duplicate blocks and deal with them, reducing disk usage, while still allowing us full (non-differencial) images to pull straight out in teh event of disaster