thanks. The problem is, why kernel 4.4.X just support layering feature ?? it never support another features !!!
On Mon, May 23, 2016 at 5:39 PM, Ilya Dryomov <idryo...@gmail.com> wrote: > On Mon, May 23, 2016 at 2:59 PM, Albert Archer <albertarche...@gmail.com> > wrote: > > > > Thanks. > > but how to use these features ??? > > so,there is no way to implement them on ubuntu 16.04 kernel (4.4.0) ??? > > it's strange !!! > > What is your use case? If you are using the kernel client, create your > images with > > $ rbd create --size <size> --image-feature layering <image-name> > > or add > > rbd default features = 3 > > to ceph.conf on the client side. (Setting rbd default features on the > OSDs will have no effect.) > > These features are nice to have but don't really affect the main I/O > path in the majority of cases. The image is perfectly usable with them > disabled. > > Thanks, > > Ilya >
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