Re: Erasure coding RBD pool for OpenStack Glance, Nova and Cinder

[Konstantin Shalygin <k0ste@xxxxxxxx>]

Does someone have used EC 
pools with OpenStack in production ?

By chance, I found that link :
https://www.reddit.com/r/ceph/comments/72yc9m/ceph_openstack_with_ec/

Yes, this good post.

My configuration is:

cinder.conf:

                                                          
[erasure-rbd-hdd]                                         
volume_driver = cinder.volume.drivers.rbd.RBDDriver       
volume_backend_name = erasure-rbd-hdd                     
rbd_pool = erasure_rbd_meta                               
rbd_user = cinder_erasure_hdd                            
rbd_ceph_conf = /etc/ceph/ceph.conf                                              

ceph.conf:

                                                            
[client.cinder_erasure_hdd]                                 
    rbd default data pool = erasure_rbd_data               

Keep in mind, your minimal client version is Luminous.

So trick is - tell to everyone your pool is "erasure_rbd_meta", rbd clients will find data pool "erasure_rbd_data" automatically.

k

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