MetroCluster switchback failed - The operation timed out while waiting for Vserver configuration synchronization to complete

Applies to

• ONTAP 9.6
• MetroCluster

Issue

MetroCluster switchback operation fails:

clusterA::>  metrocluster operation history show -instance
      Operation: switchback
          State: failed
         Errors: Failed to validate the node and cluster components before the switchback operation.
                 clusterA (non-overridable veto): The operation timed out while waiting for Vserver configuration synchronization to complete. Vserver resynchronization is continuing in the background. Run "metrocluster vserver show -cluster clusterA" on both clusters, wait until the "Configuration State" of all Vservers is "healthy", and then retry the operation. Contact technical support for assistance if any Vserver remains unhealthy as indicated by a "Configuration State" shown as "degraded" or "unhealthy".

Checking the state of the vservers, all show as healthy:

clusterA::> metrocluster vserver show -cluster clusterA

                              Cluster  : clusterA

                              Vserver  : clusterA
                      Partner Vserver  : clusterB
                  Configuration State  : healthy
                        Stream Status  : idle

                              Cluster  : clusterA
                              Vserver  : vs2
                      Partner Vserver  : vs2-mc
                  Configuration State  : healthy
                        Stream Status  : idle