[pve-devel] [PATCH storage] rbd: add support for erasure coded ec pools

Alwin Antreich alwin at antreich.com
Wed Jan 26 19:30:13 CET 2022

Hello Aaron,

nice to see EC pools are coming. ;)

January 26, 2022 5:07 PM, "Aaron Lauterer" <a.lauterer at proxmox.com> wrote:

> The first step is to allocate rbd images correctly.
> The metadata objects still need to be stored in a replicated pool, but
> by providing the --data-pool parameter on image creation, we can place
> the data objects on the erasure coded (EC) pool.

AFAICR, there is an undocumented location for a ceph.conf,

The config should have the following content.
rbd default data pool = ceph_pool_ec
Then rbd will use the data pool. This should probably work for all storage operations.

Newer ceph versions should also work with the config db option.
ceph config set client.xxx rbd_default_data_pool ceph_pool_ec


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