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Nutanix DR replication between two clusters under the same PC

  • December 5, 2025
  • 2 replies
  • 27 views
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I am working on setting up DR replication between two 3 node Nutanix clusters running AOS and AHV. Can someone help clarify something for me? It does not appear that you can replicate a PC VM, and the clusters can only be registered to a single PC instance. So:

If the cluster hosting the PC VM were to go down, how would you be able to initiate a manual failover with the controlling PC VM also down?

Do I need to stand up PC on each cluster and register each to a separate PC instance to avoid this single point of failure?

Is bi-directional replication possible with two clusters registered to the same PC? It appears that once a protection policy is setup to replicate from cluster A-->B that A is no longer an option to setup as a replication target from cluster B.

2 replies

JeroenTielen
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  • JeroenTielen
  • Vanguard
  • December 8, 2025

So when using a single PC you should make sure you backup (prism central management page) the PC to connected clusters. In case the hosting cluster goes down you can restore PC on the other cluster and then trigger a manual failover. But this increases RTO offcourse. And not all settings are restored (if you create a backup if will show you which settings are not in the backup). 

 

If your want the lowest RTO then you should install PC in the other location as well and attach that cluster to its local PC. And to have a single point of management install Nutanix Central. 

 

Cluster can only register to 1 PC. 

Yes bi-directional (many-to-many) is supported. 

 

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  • llaguerre
  • Voyager
  • December 8, 2025

It’s practical for you to have a Prism Central at each of the sites where you have Nutanix Clusters.  That way you can setup Prism Central Dr; pay very close attention to the firewall rules you will need to submit to cover both or all sites. Set it up and test your failover and failback. 

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