Which three statements are considered best practice when configuring an NFS appliance port on Cisco UCS? (Choose three.)
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A. B. C. D. E. F.ABD.
Why Appliance Port VLANs Should be Allowed on Uplinks There are number of reasons why an upstream switch should allow storage appliance port traffic.
These include: -> If storage must be accessed outside of the UCS domain.
-> If storage and servers are located in different subnets.
-> If storage is configured in Active/Passive mode and both fabric interconnects require communication to the same controller.
-> Incertain failover scenarios.
References:
Sure, here's a detailed explanation of the correct answers:
A. If storage is configured in active/passive mode and both fabric interconnects require communication to the same controller, then the appliance port VLANs should be allowed on the upstream switch.
When storage is configured in active/passive mode, only one controller is active at a time, while the other is passive. In this scenario, it is recommended to allow the appliance port VLANs on the upstream switch to ensure that both fabric interconnects can communicate with the active controller. This helps to ensure high availability and redundancy.
B. If storage and servers are located in the same subnets, then the appliance port VLANs should be allowed on the upstream switch.
If storage and servers are located in the same subnets, it is recommended to allow the appliance port VLANs on the upstream switch. This allows for efficient communication between the storage and the servers and reduces latency and network congestion.
D. If storage must be accessed outside of the Cisco UCS domain, then the appliance port VLANs should be allowed on the upstream switch.
If storage needs to be accessed outside of the Cisco UCS domain, it is recommended to allow the appliance port VLANs on the upstream switch. This allows for seamless communication between the storage and external devices.
C, E, and F are incorrect:
C. Use of the same VLAN for multiple storage protocol traffic is highly recommended in converse VLAN namespace use.
This statement is incorrect. It is not recommended to use the same VLAN for multiple storage protocol traffic. Each storage protocol should have its own dedicated VLAN to avoid conflicts and ensure efficient communication.
E. Cisco UCS supports Static and Link Aggregation Control Protocol port channels for appliance port configuration. However, no virtual port-channel support.
This statement is incorrect. Cisco UCS does support virtual port channels (vPCs) for appliance port configuration.
F. Configuration of the VLAN tagging on the storage side and on the Cisco UCS side simultaneously is recommended.
This statement is incorrect. It is not recommended to configure VLAN tagging on both the storage side and the Cisco UCS side simultaneously. This can lead to VLAN misconfigurations and network connectivity issues.
In summary, the best practices for configuring an NFS appliance port on Cisco UCS include allowing the appliance port VLANs on the upstream switch in scenarios such as active/passive mode and when storage and servers are located in the same subnets. It is also recommended to allow the appliance port VLANs on the upstream switch if storage needs to be accessed outside of the Cisco UCS domain. Finally, it is important to use dedicated VLANs for each storage protocol and to use virtual port channels for appliance port configuration.