Removing an Edge from NSX fails after the Edge VM has been deleted from the vSphere inventory

Products

• VMware NSX

Issue/Introduction

• NSX Edge VMs have been deleted from the vSphere inventory.
• Attempts to remove the Edges from NSX fail with no error message being generated, just a "Failed" status.
• Clicking on the "Failed" status and then clicking on the "Remove from NSX" button does not remove the Edge.
• One or more Tier-0/Tier-1 Gateways are configured that reference the Edge Cluster where the Edges reside.
• An External Connection is configured that references the previously noted Tier-0.

Environment

VMware NSX-T Data Center
VMware NSX

Cause

NSX objects cannot be deleted when there are dependent objects under them. An External Connection requires a Tier-0 Gateway connection, which in turn requires an Edge Cluster. These dependent objects must be removed before the Edges can be removed.

Resolution

1. Navigate to Networking > External Connections.
2. Click the three vertical dots next to the External Connection that is referencing the Tier-0 Gateway that is refencing the Edge Cluster containing the Edges to be removed. Select Delete.
   Note: This step might fail if there is a Transit Gateway that is referencing the External Connection. If this occurs, the Transit Gateway must be configured to not use the External Connection being deleted.
3. Navigate to Networking > Tier-0 Gateways.
4. Click the three vertical dots next to the Tier-0 Gateway that is referencing the Edge Cluster containing the Edges to be removed. Select Delete.
   Note: This step might fail if there are Tier-1 Gateways or other dependent objects referencing the Tier-0 Gateway. If this occurs, these dependent objects must first be removed.
5. Navigate to System > Fabric > Nodes > Edge Clusters.
6. Select the appropriate Edge Cluster.
7. Remove the Edges from the Edge Cluster.
8. Navigate to System > Fabric > Nodes.
9. Select the Edges to be deleted and click the Delete button. In case, the edge deletion fails with Delete Failed, use the following kb to complete the deletion: Cleanup Stale Edge Nodes 

Note: If the Edge Cluster needs to be removed, this can be done from the System > Fabric > Nodes > Edge Clusters page, or from the vSphere Client on the Network Connectivity page.

Additional Information

Remove NSX Edge Nodes from an Edge Cluster