Explanation
The availability of the remote cluster in the peering relationship shows "Partial" only if some nodes in the local cluster are not able to contact some or all nodes in the peer cluster1. This means that there is a network connectivity issue between some of the intercluster LIFs on the local and remote clusters. This can affect the data transfer and API communication between the clusters. The other options are not correct because they would result in different availability statuses, such as Unavailable, Pending, or Unidentified1. References
:- cluster peer show, Cluster peering issues after upgrade to ONTAP 9.11.1, Output of "cluster peer health show" intermittently displays "session_reachable" for data ping