Re: EC and rbd-mirroring

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On 18/08/2021 21.26, Torkil Svensgaard wrote:

Did I miss something obvious?

Restarting the rbd-mirror daemons was the thing I missed. All good now.

Thanks,

Torkil

Thanks,

Torkil

On 18/08/2021 14.30, Ilya Dryomov wrote:
On Wed, Aug 18, 2021 at 12:40 PM Torkil Svensgaard <torkil@xxxxxxxx> wrote:

Hi

I am looking at one way mirroring from cluster A to B cluster B.

As pr [1] I have configured two pools for RBD on cluster B:

1) Pool rbd_data using default EC 2+2
2) Pool rbd using replica 2

I have a peer relationship set up so when I enable mirroring on an image
in cluster A it will be replicated to cluster B but it will put both
data and metadata in the rbd pool.

How do I get the rbd-mirror daemon to use rbd_data for data and rbd for
metadata only?

Thanks,

Torkil

[1]
https://docs.ceph.com/en/latest/rados/operations/erasure-code/#erasure-coding-with-overwrites

Hi Torkil,

This is covered here:

https://docs.ceph.com/en/latest/rbd/rbd-mirroring/#data-pools

Thanks,

                 Ilya
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