Hi, As we expand our cluster (adding nodes), we'd like to take advantage of better EC profiles enabled by higher server/rack counts. I understand, as Ceph currently exists (15.2.4), there is no way to live-migrate from one EC profile to another on an existing pool, for example, from 4+2 to 17+3 when going from 7 nodes to 21. Is this correct?
How are people accomplishing migrations such as this one (or 4+2 to 9+3, for example) with minimal disruption to services that utilize RBDs sitting on top of these pools? I found: https://ceph.io/geen-categorie/ceph-pool-migration/ , which requires effectively shutting down access during migration (which is doable, but not ideal) - and from what I've read - has some potential downsides (specifically referencing the cppool method). The pools are all EC for data, and an rbd pool exists for metadata. Thank you! _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
