[ceph-users] Altering crush-failure-domain

Paul Emmerich paul.emmerich at croit.io
Mon Mar 4 11:32:12 PST 2019


Yes, these parts of the profile are just used to create a crush rule.
You can change the crush rule like any other crush rule.


Paul

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Paul Emmerich

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On Mon, Mar 4, 2019 at 8:13 PM Kees Meijs <kees at nefos.nl> wrote:
>
> Hi Cephers,
>
> Documentation on http://docs.ceph.com/docs/master/rados/operations/erasure-code/ states:
>
> Choosing the right profile is important because it cannot be modified after the pool is created: a new pool with a different profile needs to be created and all objects from the previous pool moved to the new.
>
>
> Right, that makes sense. However, is it possible to "migrate" crush-failure-domain from osd to host, to rack and so on without copying pools?
>
> Regards,
> Kees
>
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