The PortChannel connecting the vPC peers should carry all the VLANs used by the vPC member ports.
So the peer-link should carry all the vlans used via the other ports.

The configuration in Cisco UCS Manager needs to specify the source of the traffic for the SPAN session.
Since the requirement is to monitor the traffic from VSAN 11, selecting VSAN 11 as the source will direct the traffic to the monitoring session. This is consistent with the SPAN session's purpose, which is to create a copy of the traffic for analysis or monitoring.
References := For more information on configuring SPAN sessions in Cisco UCS Manager, you can refer to the Cisco Data Center Core Technologies study materials and official documentation, which provide guidelines on setting up traffic monitoring solutions within a Cisco data center environment. These resources will offer detailed instructions and best practices for implementing SPAN sessions to monitor VSAN traffic.

Cisco Data Center Network Manager (DCNM) is designed to help manage all NX-OS network deployments, which includes LAN fabrics, SAN fabrics, and IP Fabric for Media (IPFM) networking in the data center.
DCNM provides prebuilt templates that can be used to customize fabric deployments, allowing for a more streamlined and efficient setup process. These templates include best-practice policy templates for Easy Fabric Mode and support for Python scripting for more complex policy templates, facilitating the customization and automation of fabric deployments.
References: This information is supported by the Cisco Data Center Network Manager 11 Data Sheet, which outlines the features and benefits of DCNM, including the availability of prebuilt templates for fabric customization