Hello: I'm looking at restoring from a backup in an environment that operates with RBD volumes. Suppose that I restore into a newly created volume. Does that volume have a UNIX-like semantics of returning zeroes from blocks into which no data was written yet? In Linux, this feature is thought as useful enough that LVM volumes do that, although they are not files. But naturally, traditional disks do not do that, unless they are pre-filled with zeroes. Obviously, tracking which blocks contain data adds an overhead. But we should be well situated with all the snapshots and the diff. Yet I'm unable get a conclusive answer if we do it for RBD and/or RADOS. Does anyone happen to know how this works and is it guaranteed on various types of backends? Greetings, -- Pete _______________________________________________ Dev mailing list -- dev@xxxxxxx To unsubscribe send an email to dev-leave@xxxxxxx
