A midsize company recently deployed a Cisco UCS environment with a vSAN datastore to support...

The design has two distinct requirements: traffic separation and repeatable interface placement. Option A addresses the first by assigning management and vSAN traffic to different VLANs and ensuring that those VLANs are defined and carried by the fabric interconnect configuration. VLAN separation creates distinct Layer 2 broadcast domains and lets the design apply independent upstream controls, monitoring, and quality-of-service treatment. It does not create additional physical bandwidth by itself, but it prevents the two services from sharing one undifferentiated logical network and provides the policy boundary needed to manage contention. Cisco’s vSAN validated design similarly maps in-band management and vSAN to different VLANs and separate vNIC group policies.

Option B addresses consistency. In Cisco UCS, a vNIC/vHBA placement policy specifies how vCons map to physical adapters and which virtual interfaces are assigned to each vCon. Incorporating a dedicated policy into a reusable service-profile template makes the same placement rules apply whenever profiles are instantiated for blade servers, reducing drift and manual errors. Cisco documentation explicitly describes placement policies as the mechanism for mapping vCons to physical adapters.

Option C is not a standard requirement; separate traffic classes do not require creating another UCS virtual fabric. Option D describes automation but does not define either the required traffic isolation or interface-to-adapter mapping. Option E is vague and lacks the UCS VLAN and placement-policy controls needed for a repeatable implementation. Therefore, A and B jointly satisfy both performance isolation and standardized placement. Cisco vSAN validated design and Cisco vNIC/vHBA placement guidance