Re: For suggestions and best practices on expanding Ceph cluster and removing old nodes

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Maybe he is limited by the supported OS


> 
> I would create a new cluster with Quincy and would migrate the data from
> the old to the new cluster bucket by bucket. Nautilus is out of support
> and
> I would recommend at least to use a ceph version that is receiving
> Backports.
> 
> huxiaoyu@xxxxxxxxxxxx <huxiaoyu@xxxxxxxxxxxx> schrieb am Di., 25. Apr.
> 2023, 18:30:
> 
> > Dear Ceph folks,
> >
> > I would like to listen to your advice on the following topic: We have
> a
> > 6-node Ceph cluster (for RGW usage only ) running on Luminous 12.2.12,
> and
> > now will add 10 new nodes. Our plan is to phase out the old 6 nodes,
> and
> > run RGW Ceph cluster with the new 10 nodes on Nautilus version。
> >
> > I can think of two ways to achieve the above goal. The first method
> would
> > be:   1) Upgrade the current 6-node cluster from Luminous 12.2.12 to
> > Nautilus 14.2.22;  2) Expand the cluster with the 10 new nodes, and
> then
> > re-balance;  3) After rebalance completes, remove the 6 old nodes from
> the
> > cluster
> >
> > The second method would get rid of the procedure to upgrade the old 6-
> node
> > from Luminous to Nautilus, because those 6 nodes will be phased out
> anyway,
> > but then we have to deal with a hybrid cluster with 6-node on Luminous
> > 12.2.12, and 10-node on Nautilus, and after re-balancing, we can
> remove the
> > 6 old nodes from the cluster.
> >
> > Any suggestions, advice, or best practice would be highly appreciated.
> >
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