Designing Cisco Data Center Infrastructure (DCID) — Question 66

A storage administrator receives reports of network delays when database software attempts to access the storage array. The virtual machines that host the database software are installed on different rack servers connected to the Cisco UCS Fabric Interconnect domain. The existing SAN switches are connected to the Fabric Interconnects using two 8 Gb port-channel interfaces to connect the storage array. The storage administrator has decided to deploy iSCSI storage with four 10 Gbps interfaces connected to the Cisco UCS Fabric Interconnects.

Which deployment type resolves the problems with storage contention?

Answer options

• A. iSCSI storage with Cisco UCS Fabric Interconnect in the virtual port-channel mode
• B. iSCSI storage with Cisco UCS Fabric Interconnect using an appliance port
• C. iSCSI storage appliance on Cisco UCS Fabric Interconnect uplink trunk port
• D. iSCSI storage appliance on Cisco UCS Fabric Interconnect in the storage end-host mode

Correct answer: B

Explanation

The correct answer is B because using an appliance port allows for better management of storage traffic and reduces contention by providing a dedicated path for iSCSI storage. Options A, C, and D do not provide the same level of isolation and performance improvements for storage traffic as using an appliance port does.