Hi Robert.
From: https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/AdminGuide/4-5/b-hxdp-admin-guide-4-5/m-hxdp-replication-vm-disaster_recovery.html#concept_b5z_jt1_21b
Replication Pair Overview
Creating a replication cluster pair is a prerequisite for configuring VMs for replication. After two (2) HX clusters are paired, map the datastore on the remote cluster to a datastore on the local cluster.
Mapping datastore A on HX cluster 1 with a datastore B on HX cluster 2 enables any VM on HX cluster 1 that resides in datastore A and is configured for replication to be replicated to datastore B on HX cluster 2. Similarly, any VM on cluster 2 that resdies in datastore B and is configured for replication to be replicated to datastore A on HX cluster 1.
Pairing is strictly 1-to-1. A cluster can be paired with no more than one other cluster.
Mapping is a strict 1-to-1 relationship. A datastore on a paired HX cluster can be mapped to no more than one datastore on the other HX cluster. Note that there can be multiple mapped datastores. For example, datastore A on HX cluster 1 mapped to datastore B on HX cluster 2, and datastore C on HX cluster1 mapped to datastore D on HX cluster 2.
Note | Once a local datastore is mapped to a remote datastore, the corresponding local datastore will not appear under Other DRO Protection. |
You have to have your guestVMs on datastores that are mapped. Now keep in mind you can map multiple datastores, but each source and destination needs to be a unique pairing.
Thanks,
Kirk...