Failed to mount remote vSAN datastore

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:
Mounting remote vSAN Datastore gives an error "Failed to run the remote datastore mount pre-checks" in 'Mount remote vSAN datastore' workflow or calling vSphere vSAN API RemoteVcMountPrecheck.

Issue happens when:

1. The version of host in the client cluster is one of impacted ESXi versions.
2. IPv6 is disabled on the host.

Environment

VMware vSphere ESXi 7.0.2

Resolution

Upgrade vCenter/ESXi to 7.0U2c or higher

Workaround:
To workaround this issue, enable IPv6 on the ESXi host. 

Please refer Enable or Disable IPv6 Support on a Host  for details.