On Wed, Mar 13, 2013 at 11:03 AM, Iustin Pop <[email protected]> wrote: > On Tue, Mar 12, 2013 at 06:53:36PM +0200, Constantinos Venetsanopoulos wrote: >> Hi, >> >> you are definitely right that those two are very similar and I used >> to have the same problem when implementing RBD support. >> >> However, probably RBD is more accurate, because it refers to the >> Rados Block Device which is the actual driver you use to talk with >> the storage backend; that's what the instance sees. Whereas >> RADOS is the external storage cluster itself (the Object Store). > > Possibly yes. But in the end, an instance's data is backed by Rados, not > by RBD, as RBD is just a way to access Rados. The point is, these are > all small differences, what I care more is code readability/clarity. > >> QEMU also refers to RADOS in the same way (as `rbd'). See here: >> http://ceph.com/docs/master/rbd/qemu-rbd/ >> >> In any way, I don't have a strong opinion and think that indeed it >> would simplify things a lot. >> >> That means that we would also refer to it with `-t rados' ? > > Not necessarily, although that is also an option… >
I think using "rados" is clear enough! :) Thanks, Guido
