Hi Cepher, Current statfs(2) in ceph kernel client provides raw capacity information of total/used/avail, but in the point of view of filesystem I think we actually more willing to see real data capacity instead of raw. So I have a suggestion to translate raw capacity to real data capacity, it can be simply implemented by taking advantage of num.object_copies, the result may be not very accurate but still having reference significance. What do you think and any suggestion? Thanks, Chengguang. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html