Add cluster network to existing system.

ianmbetts

New Member
Mar 11, 2020
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61
Hi,
I have a 3 node hyper-converged setup which was created with a combined cluster and public network.
I would like to add a separate cluster network, but am unsure if and how this can be done on an existing installation.
Any tips would be appreciated.
 

spirit

Famous Member
Apr 2, 2010
4,665
365
103
www.odiso.com
Hi,
I have a 3 node hyper-converged setup which was created with a combined cluster and public network.
I would like to add a separate cluster network, but am unsure if and how this can be done on an existing installation.
Any tips would be appreciated.
it should be possible with editing ceph.conf, adding

Code:
[global]
        cluster_network = {cluster-network/netmask}

You'll need to restart osds. I think monitor && vms client should be ok, as they use the public network.
 

ianmbetts

New Member
Mar 11, 2020
8
1
3
61
Thanks, yes it was quite straightforward in the end. I modified the global section to redefine the cluster network. I destroyed and recreated the monitors one at a time (maybe this wasn't necessary?) but it was only after restarting the OSDs that I saw traffic starting to flow on the cluster network.
 

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