The image metadata still needs to live in a replicated data pool -- only the data blocks can be stored in an EC pool. Therefore, when creating the image, you should provide the "--data-pool <pool-name>" optional to specify the EC pool name. On Thu, Oct 12, 2017 at 2:06 PM, Josy <josy@xxxxxxxxxxxxxxxxxxxxx> wrote: > Hi, > > I am trying to setup an erasure coded pool with rbd image. > > The ceph version is Luminous 12.2.1. and I understand, since Luminous, RBD > and Cephfs can store their data in an erasure coded pool without use of > cache tiring. > > I created a pool ecpool and when trying to create a rbd image, gets this > error. > > ============== > > [cephuser@ceph-las-admin-a1 ceph-cluster]$ rbd create --size 20G > ecpool/ectestimage2 > 2017-10-12 10:55:37.992965 7f18857fa700 -1 librbd::image::CreateRequest: > 0x55608e1e0c20 handle_add_image_to_directory: error adding image to > directory: (95) Operation not supported > rbd: create error: (95) Operation not supported > ============== > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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