[ClusterLabs] Can subsequent rings be added to established cluster?

[Christine Caulfield]

On 21/02/2019 18:33, lejeczek wrote:
> hi guys
> 
> as per the subject.
> 
> Would there be some nice docs/howto? Or maybe it's just standard op
> procedure?
> 


With corosync 3 you can add links (similar to rings from the user POV)
dynamically just by adding the necessary ringX_addr  entries to
corosync.conf (on all nodes) and reloading. I'm not sure if pcs supports
this yetm so you might have to do it manually. When pcs gets this
feature it will get documented.

In the meantime this document probably has WAY too much information but
does explain what's going on.

https://people.redhat.com/ccaulfie/docs/KnetCorosync.pdf


Chrissie