Removing unused clusters from vCenter fails due to "Cannot connect to vSAN management service to determine if cluster <cluster name> is acting as a remote VSAN client or server."

Products

• VMware vCenter Server

Issue/Introduction

• You're attempting to remove/delete unused/empty clusters from vCenter Server Interface
• The attempt fails with the following error message:
  The operation is not allowed in the current state. Cannot connect to vSAN management service to determine if cluster <cluster name> is acting as a remote vSAN client or server. Please restart vSAN management service and retry.

Environment

VMware vCenter Server

Cause

Corruption can occur in installer package located at /etc/vmware/vsphere-ui/vc-packages/vsphere-client-serenity/

Resolution

Follow the resolution steps in KB396101.

Additional Information

Additional information can be found in KB312655.