Depending on your requirements, you can choose to have multiple Bunker nodes for a Primary. If one of the Bunker nodes crashes during the replay, you can synchronize the Secondaries from an alternative Bunker node.

Multiple Bunker nodes are also useful if you want to avoid a single point of failure due to a Bunker node crashing. If you have multiple Bunker nodes, check the status of the Bunker nodes using the vxrlink status command to find out the most up-to-date node, before you perform replay. This is necessary if any of the Bunker nodes are replicated to, asynchronously. The rest of the procedure to recover from a disaster is same as that for a single Bunker node.