Problem with Snebu: it only does file-level deduplication I think which means storing something like virtual machine snapshots or images will not deduplicate well.
You need block-level deduplication to work well with things like VM images.
You need block-level deduplication to work well with things like VM images.
I've got a solution in the works specifically for KVM images, that hopefully I'll be able to finish up the next time I get a week off of work. The way I'm planning on handling that (at least for LibVirt based VMs) is to use libguestfs to create an equivalent to the `find` command (with all the -printf options that it supports), and to generate tar file output of selected files from the VM. (Snebu is designed around only requiring find/tar on the client side -- so anything that can produce this output will work). Although I don't like that libguestfs actually fires up a VM in order to work with the image files -- I may work on an approach to read the qcow2 file images directly. Again, looking forward to a vacation this spring so I can pound out that module.