An engineer designs a Cisco UCS solution that must provide guaranteed and deterministic bandwidth to a specific server in the environment. The solution must apply to network and storage traffic of C- Series and B-Series servers. Which solution should be included to meet these requirements?

To guarantee deterministic bandwidth for both network (vNIC) and storage (vHBA) traffic, the specific virtual interfaces within the server's service profile must be pinned to dedicated uplink ports on the Fabric Interconnect. This is achieved by creating a pin group that targets a specific uplink port or port-channel. Assigning this pin group to the vNICs and vHBAs ensures their traffic is always forwarded through the designated uplink, isolating it from other traffic and providing a predictable, guaranteed bandwidth path. This method applies to both B-Series and C-Series servers managed by UCS Manager.

A. Pin the server ports of the service profile to dedicates uplink ports. Pinning is configured on virtual interfaces (vNICs/vHBAs), not on the physical server ports that connect the chassis/server to the Fabric Interconnect.
C. Pin the IOM ports of the service profile to dedicated server ports. This describes a non-existent and illogical traffic path. Pinning directs traffic from a server's virtual interface out through an uplink port.
D. Pin the vNlCs and vHBAs of the service profile to dedicated server ports. vNICs and vHBAs are pinned to uplink ports to control egress traffic from the UCS domain, not to downstream-facing server ports.

1. Cisco, Cisco UCS Manager Network Management Guide, Release 4.1, "LAN Pin Groups," Section: About LAN Pin Groups. "A LAN pin group is a policy that determines how the Cisco UCS Manager pins server traffic to an uplink port."

2. Cisco, Cisco UCS Manager Storage Management Guide, Release 4.1, "SAN Pin Groups," Section: SAN Pin Groups. "A SAN pin group is a policy that determines how Cisco UCS Manager pins vHBA traffic to an uplink Fibre Channel port."

3. Cisco Live Presentation, BRKINI-2042, Cisco UCS Network Architecture Deep Dive, 2019. The presentation details traffic flow and the use of pin groups to direct vNIC/vHBA traffic to specific uplinks for deterministic performance.