On Thu, 8 Feb 2018, Yan, Zheng wrote: > On Thu, Feb 8, 2018 at 10:47 AM, Chengguang Xu <cgxu519@xxxxxxxxxx> wrote: > > 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. > > > > It's not that simple when there are multiple data pools. I seem to remember someone (Doug or Jeff?) working on a patch that would adjust the statfs result for a given directory based on the data pool and the usual "max avail" style calculation that 'ceph df' uses per pool (which is based on replication/ec multiplier and most-full osd)...? sage -- 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
