Hi Rich, Nathan,
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.
Thanks again for your time!
Laszlo
On 9/8/21 12:42 AM, Richard Bade wrote:
> Hi Budai,
> I agree with Nathan, just switch the crush rule. I've recently done
> this on one of our clusters.
> Create a new crush rule the same as your old one except with different
> failure domain.
> Then use: ceph osd pool set {pool_name} crush_rule {new_rule_name}
> Very easy.
> This may kick off some backfill so I'd suggest setting norebalance
> before doing this.
>
> Rich
>
> On Wed, 8 Sept 2021 at 07:51, Nathan Fish <lordcirth@xxxxxxxxx> wrote:
>> I believe you would create a new rule and switch?
>>
>> On Tue, Sep 7, 2021 at 3:46 PM Budai Laszlo <laszlo.budai@xxxxxxxxx> wrote:
>>> Dear all,
>>>
>>> is there a way to change the failure domain of a CRUSH rule using the CLI?
>>>
>>> I know I can do that by editing the crush map. I'm curious if there is a "CLI way"?
>>>
>>> Thank you,
>>> Laszlo
>>>
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