On 10/07/2013 13:58, Jeff Darcy wrote: > >> 2d. it needs a fast validation scanner which verifies that data is where >> it should be and is identical everywhere (md5sum). > > How fast is fast? What would be an acceptable time for such a scan on > a volume containing (let's say) ten million files? > What would be nice is if the underlying filesystem had crypto checksums already (I'm thinking of ZFS) and exposed this information to the upper layers.
