On 5/28/19 10:04 AM, Kevin Olbrich wrote:
> Hi Wido,
> 
> thanks for your reply!
> 
> For CentOS 7, this means I can switch over to the "rpm-nautilus/el7"
> repository and Qemu uses a nautilus compatible client?
> I just want to make sure, I understand correctly.
> 

Yes, that is correct. Keep in mind though that you will need to
Stop/Start the VMs or (Live) Migrate them to a different hypervisor for
the new packages to be loaded.

Wido

> Thank you very much!
> 
> Kevin
> 
> Am Di., 28. Mai 2019 um 09:46 Uhr schrieb Wido den Hollander
> <w...@42on.com <mailto:w...@42on.com>>:
> 
> 
> 
>     On 5/28/19 7:52 AM, Kevin Olbrich wrote:
>     > Hi!
>     >
>     > How can I determine which client compatibility level (luminous, mimic,
>     > nautilus, etc.) is supported in Qemu/KVM?
>     > Does it depend on the version of ceph packages on the system? Or do I
>     > need a recent version Qemu/KVM?
> 
>     This is mainly related to librados and librbd on your system. Qemu talks
>     to librbd which then talks to librados.
> 
>     Qemu -> librbd -> librados -> Ceph cluster
> 
>     So make sure you keep the librbd and librados packages updated on your
>     hypervisor.
> 
>     When upgrading them make sure you either Stop/Start or Live Migrate the
>     VMs to a different hypervisor so the VMs are initiated with the new
>     code.
> 
>     Wido
> 
>     > Which component defines, which client level will be supported?
>     >
>     > Thank you very much!
>     >
>     > Kind regards
>     > Kevin
>     >
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>     >
> 
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