Applies to ONTAP 9 FC SAN Cisco UCS ( FCoE) VMware ESXi Brocade FC switch Flexpod Issue During FC switch maintenance on fabric A all ESXi hosts in a Cisco UCS chassis using same Fabric interconnects e...Applies to ONTAP 9 FC SAN Cisco UCS ( FCoE) VMware ESXi Brocade FC switch Flexpod Issue During FC switch maintenance on fabric A all ESXi hosts in a Cisco UCS chassis using same Fabric interconnects experience loss of access to datastores APD / PDL UCS Fabric interconnects are up for both fabrics but ESXi vmhba are still down on fabric B from previous maintenance