There is no existing option to thick provision images within RBD. When an image is created or cloned, the only actions that occur are some small metadata updates to describe the image. This allows image creation to be a quick, constant time operation regardless of the image size. To thick provision the entire image would require writing data to the entire image and ensuring discard support is disabled to prevent the OS from releasing space back (and thus re-sparsifying the image).
On Mon, Oct 16, 2017 at 10:49 AM, <si...@turka.nl> wrote: > Hi, > > I have deployed a Ceph cluster (Jewel). By default all block devices that > are created are thin provisioned. > > Is it possible to change this setting? I would like to have that all > created block devices are thick provisioned. > > In front of the Ceph cluster, I am running Openstack. > > Thanks! > > Sinan > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
