NetApp Certified Design Engineer – SAN — Question 9

An administrator is configuring their Ethernet switches to support an AFF A300 cluster that will be providing iSCSI LUNs to servers. The switches are also used for other traffic from various hosts.
In this scenario, which statement about the switch configuration is correct?

Answer options

• A. Use a larger MTU size at the SAN connection rather than the host connections to allow for greater SAN bandwidth.
• B. Use network ports as access ports only.
• C. Use multiple VLANs to segregate iSCSI traffic from other traffic types
• D. Use a single VLAN to consolidate all data traffic on the switches.

Correct answer: A

Explanation

The correct answer is A because using a larger MTU size at the SAN connection can improve efficiency and throughput for iSCSI traffic, which is crucial for high bandwidth. Option B is incorrect as access ports alone do not support the required VLAN configurations for diverse traffic. Option C, while a good practice for traffic management, does not directly address the need for MTU size in this scenario. Option D is not advisable as it can lead to congestion and does not provide the necessary separation of traffic types.