Hi,

Following on this, are there any restriction or issues with setting a new rule 
on a pool, except for the resulting backfilling?

I can't see anything specific about it in the documentation, just the command 
ceph osd pool set {pool-name} crush_rule with the description


crush_rule

Description

The rule to use for mapping object placement in the cluster.

Type

String

Does it work equally (well) for replicated and ec, changing m/k values, etc?

Many thanks!

________________________________
From: Konstantin Shalygin 'k0ste at k0ste.ru' 
<[email protected]>
Sent: 08 September 2021 17:35
To: [email protected] 
<[email protected]>
Subject: [ceph-users] Re: Edit crush rule

Just create new one with your failure domain and switch the pool rule. Then 
delete old rule


k

Sent from my iPhone

> On 8 Sep 2021, at 01:11, Budai Laszlo <[email protected]> wrote:
>
> Thank you for your answers. Yes, I'm aware of this option, but this is not 
> changing the failure domain of an existing rule. I was wondering whether the 
> CLI would permit that change. It looks like it doesn't.

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