HCI Mesh is a software-based approach for disaggregation of compute and storage resources in vSAN. HCI Mesh brings together multiple independent vSAN clusters by enabling cross-cluster utilization of remote datastore capacity within vCenter Server. HCI Mesh enables you to efficiently utilize and consume data center resources, which provides simple storage management at scale.

VMware Cloud Foundation supports sharing remote datastores with HCI Mesh for VI workload domains.

You can create HCI Mesh by mounting remote vSAN datastores on vSAN clusters and enable data sharing from the vCenter Server. It can take upto 5 minutes for the mounted remote vSAN datastores to appear in the .

It is recommended that you do not mount or configure remote vSAN datastores for vSAN clusters in the management domain.

For more information on sharing remote datastores with HCI Mesh, see "Sharing Remote Datastores with HCI Mesh" in Administering VMware vSAN 7.0 at https://docs.vmware.com/en/VMware-vSphere/index.html.
Note: You cannot mount remote vSAN datastores on stretched clusters.
Note: After enabling HCI Mesh by mounting remote vSAN datastores, you can migrate VMs from the local datastore to a remote datastore. Since each cluster has its own VxRail Manager VM, you should not migrate VxRail Manager VMs to a remote datastore.