Thank you for your reply.
I created a erasure coded pool 'ecpool' and a replicated pool to store
metadata 'ec_rep_pool'
And created image as you mentioned :
rbd create --size 20G --data-pool ecpool ec_rep_pool/ectestimage1
But the image seems to be created in ec_rep_pool*
*
============
[cephuser@ceph-las-admin-a1 ceph-cluster]$ rbd ls -l ecpool
[cephuser@ceph-las-admin-a1 ceph-cluster]$ rbd ls -l ec_rep_pool
NAME SIZE PARENT FMT PROT LOCK
ectestimage 20480M 2
ectestimage1 20480M 2
Is that how it suppose to work ?
On 12-10-2017 23:53, David Turner wrote:
Here is your friend.
http://docs.ceph.com/docs/luminous/rados/operations/erasure-code/#erasure-coding-with-overwrites
On Thu, Oct 12, 2017 at 2:09 PM Jason Dillaman <[email protected]
<mailto:[email protected]>> wrote:
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 <[email protected]
<mailto:[email protected]>> 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
> ==============
>
>
>
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--
Jason
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