[ClusterLabs] Colocation per site ?

[Strahil Nikolov]

Hello All,
I'm currently in a process of building SAP HANA Scale-out cluster and the HANA team has asked that all nodes on the active instance should have one IP for backup purposes.
Yet, I'm not sure how to setup the constraints (if it is possible at all) so all IPs will follow the master resource and yet run on a separate host.
I know that I can set location constraints between each pair of nodes , but the logic identifying the master's DC is eluding me.
Best Regards,Strahil Nikolov
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