Which two statements about NFS Appliance port failover and network uplink failure on Cisco UCS are true? (Choose two.)
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A. B. C. D. E.CD.
NFS (Network File System) appliance port failover and network uplink failure are critical components in the operation of Cisco UCS (Unified Computing System) environments. Cisco UCS is a data center architecture that integrates computing, networking, and storage resources to provide a unified platform for deploying and managing enterprise applications.
To answer this question, we need to understand the concepts of appliance ports, fabric interconnects, failover policies, and network uplink failure.
A. By design, Cisco UCS fabric interconnects operate as one large fabric. This statement is true. Cisco UCS fabric interconnects are designed to operate as a single, logical fabric, providing connectivity between all the devices in the data center. The fabric interconnects provide high-bandwidth, low-latency connections between the computing, storage, and networking resources, enabling a unified, converged infrastructure.
B. To change default appliance port behavior, configure an appliance port failover policy and set the action to be taken upon uplink failure. This statement is true. Appliance port failover policies are used to configure the behavior of the appliance ports in the event of a network uplink failure. By default, appliance ports are shut down if the uplink that they are pinned to goes down. To change this behavior, you can configure a failover policy and set the action to be taken upon uplink failure, such as switching to a backup uplink or sending an alert.
C. By default, appliance ports are shut down if the uplink that they are pinned to goes down. This statement is also true. By default, appliance ports are pinned to specific uplinks, and if the uplink goes down, the appliance port is shut down. This behavior can be changed by configuring an appliance port failover policy, as described in statement B.
D. Failover cannot be configured on the Cisco UCS side for appliance ports. This statement is false. Failover can be configured on the Cisco UCS side for appliance ports, as described in statement B.
E. Failover must be configured on the storage side and Cisco UCS side, and it must be implemented with the correct network design while specific failover behaviors for storage controllers are kept in mind. This statement is also true. Failover must be configured on both the storage side and the Cisco UCS side to ensure high availability and reliability. The failover behavior should be carefully designed to ensure that storage controllers are not overwhelmed by traffic, and that failover events do not cause disruptions in the network.
In summary, statements B and C are true about NFS Appliance port failover and network uplink failure on Cisco UCS. Statement A is also true, while statements D and E are false and true, respectively.