[ceph-users] Re: per-rbd snapshot limitation

[David C.]

I don't think this parameter exists (today)

Le mer. 15 nov. 2023 à 19:25, Wesley Dillingham  a
écrit :

> Are you aware of any config item that can be set (perhaps in the ceph.conf
> or config db) so the limit is enforced immediately at creation time without
> needing to set it for each rbd?
>
> Respectfully,
>
> *Wes Dillingham*
> w...@wesdillingham.com
> LinkedIn 
>
>
> On Wed, Nov 15, 2023 at 1:14 PM David C.  wrote:
>
>> rbd create testpool/test3 --size=100M
>> rbd snap limit set testpool/test3 --limit 3
>>
>>
>> Le mer. 15 nov. 2023 à 17:58, Wesley Dillingham 
>> a écrit :
>>
>>> looking into how to limit snapshots at the ceph level for RBD snapshots.
>>> Ideally ceph would enforce an arbitrary number of snapshots allowable per
>>> rbd.
>>>
>>> Reading the man page for rbd command I see this option:
>>> https://docs.ceph.com/en/quincy/man/8/rbd/#cmdoption-rbd-limit
>>>
>>> --limit
>>>
>>> Specifies the limit for the number of snapshots permitted.
>>>
>>> Seems perfect. But on attempting to use it as such I get an error:
>>>
>>> admin@rbdtest:~$ rbd create testpool/test3 --size=100M --limit=3
>>> rbd: unrecognised option '--limit=3'
>>>
>>> Where am I going wrong here? Is there another way to enforce a limit of
>>> snapshots for RBD? Thanks.
>>>
>>> Respectfully,
>>>
>>> *Wes Dillingham*
>>> w...@wesdillingham.com
>>> LinkedIn 
>>> ___
>>> ceph-users mailing list -- ceph-users@ceph.io
>>> To unsubscribe send an email to ceph-users-le...@ceph.io
>>>
>>
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[ceph-users] Re: per-rbd snapshot limitation

[Wesley Dillingham]

Are you aware of any config item that can be set (perhaps in the ceph.conf
or config db) so the limit is enforced immediately at creation time without
needing to set it for each rbd?

Respectfully,

*Wes Dillingham*
w...@wesdillingham.com
LinkedIn 


On Wed, Nov 15, 2023 at 1:14 PM David C.  wrote:

> rbd create testpool/test3 --size=100M
> rbd snap limit set testpool/test3 --limit 3
>
>
> Le mer. 15 nov. 2023 à 17:58, Wesley Dillingham  a
> écrit :
>
>> looking into how to limit snapshots at the ceph level for RBD snapshots.
>> Ideally ceph would enforce an arbitrary number of snapshots allowable per
>> rbd.
>>
>> Reading the man page for rbd command I see this option:
>> https://docs.ceph.com/en/quincy/man/8/rbd/#cmdoption-rbd-limit
>>
>> --limit
>>
>> Specifies the limit for the number of snapshots permitted.
>>
>> Seems perfect. But on attempting to use it as such I get an error:
>>
>> admin@rbdtest:~$ rbd create testpool/test3 --size=100M --limit=3
>> rbd: unrecognised option '--limit=3'
>>
>> Where am I going wrong here? Is there another way to enforce a limit of
>> snapshots for RBD? Thanks.
>>
>> Respectfully,
>>
>> *Wes Dillingham*
>> w...@wesdillingham.com
>> LinkedIn 
>> ___
>> ceph-users mailing list -- ceph-users@ceph.io
>> To unsubscribe send an email to ceph-users-le...@ceph.io
>>
>
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[ceph-users] Re: per-rbd snapshot limitation

[David C.]

rbd create testpool/test3 --size=100M
rbd snap limit set testpool/test3 --limit 3


Le mer. 15 nov. 2023 à 17:58, Wesley Dillingham  a
écrit :

> looking into how to limit snapshots at the ceph level for RBD snapshots.
> Ideally ceph would enforce an arbitrary number of snapshots allowable per
> rbd.
>
> Reading the man page for rbd command I see this option:
> https://docs.ceph.com/en/quincy/man/8/rbd/#cmdoption-rbd-limit
>
> --limit
>
> Specifies the limit for the number of snapshots permitted.
>
> Seems perfect. But on attempting to use it as such I get an error:
>
> admin@rbdtest:~$ rbd create testpool/test3 --size=100M --limit=3
> rbd: unrecognised option '--limit=3'
>
> Where am I going wrong here? Is there another way to enforce a limit of
> snapshots for RBD? Thanks.
>
> Respectfully,
>
> *Wes Dillingham*
> w...@wesdillingham.com
> LinkedIn 
> ___
> ceph-users mailing list -- ceph-users@ceph.io
> To unsubscribe send an email to ceph-users-le...@ceph.io
>
___
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[ceph-users] Re: per-rbd snapshot limitation

[Wesley Dillingham]

Perfect, thank you.

Respectfully,

*Wes Dillingham*
w...@wesdillingham.com
LinkedIn 


On Wed, Nov 15, 2023 at 1:00 PM Ilya Dryomov  wrote:

> On Wed, Nov 15, 2023 at 5:57 PM Wesley Dillingham 
> wrote:
> >
> > looking into how to limit snapshots at the ceph level for RBD snapshots.
> > Ideally ceph would enforce an arbitrary number of snapshots allowable per
> > rbd.
> >
> > Reading the man page for rbd command I see this option:
> > https://docs.ceph.com/en/quincy/man/8/rbd/#cmdoption-rbd-limit
> >
> > --limit
> >
> > Specifies the limit for the number of snapshots permitted.
> >
> > Seems perfect. But on attempting to use it as such I get an error:
> >
> > admin@rbdtest:~$ rbd create testpool/test3 --size=100M --limit=3
> > rbd: unrecognised option '--limit=3'
> >
> > Where am I going wrong here? Is there another way to enforce a limit of
> > snapshots for RBD? Thanks.
>
> Hi Wes,
>
> I think you want "rbd snap limit set --limit 3 testpool/test3".
>
> Thanks,
>
> Ilya
>
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[ceph-users] Re: per-rbd snapshot limitation

[Ilya Dryomov]

On Wed, Nov 15, 2023 at 5:57 PM Wesley Dillingham  
wrote:
>
> looking into how to limit snapshots at the ceph level for RBD snapshots.
> Ideally ceph would enforce an arbitrary number of snapshots allowable per
> rbd.
>
> Reading the man page for rbd command I see this option:
> https://docs.ceph.com/en/quincy/man/8/rbd/#cmdoption-rbd-limit
>
> --limit
>
> Specifies the limit for the number of snapshots permitted.
>
> Seems perfect. But on attempting to use it as such I get an error:
>
> admin@rbdtest:~$ rbd create testpool/test3 --size=100M --limit=3
> rbd: unrecognised option '--limit=3'
>
> Where am I going wrong here? Is there another way to enforce a limit of
> snapshots for RBD? Thanks.

Hi Wes,

I think you want "rbd snap limit set --limit 3 testpool/test3".

Thanks,

Ilya
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