What are Unified Target Adapter (UTA2)/CNA Ports and how to configure them?

Unified Target Adapter (UTA2) ports are Converged Network Adapters (CNA) that can be configured as either 10-Gb Ethernet and FCoE or Fibre Channel (FC) ports
Use command system node hardware unified-connect show (or the alias ucadmin show) to check current port configuration
To configure the ports follow the appropriate document:
- CNA to FC - Change the UTA2 port from CNA mode to FC mode
- FC to CNA - Covert the UTA2 port in ONTAP

The architecture is based on dual port ASIC design and are available NetApp controllers, see Hardware Universe for more details
There are two ports on each ASIC that make up the port pairs of a given UTA2 device and are described below, based upon the platform
- Controllers:
  - FAS2720 / FAS2750 / AFF A220 / AFF A150 / AFF C190
    - e0c/e0d
    - e0e/e0f
  - FAS8200 / AFF A300
    - e0e/e0f
    - e0g/e0h
- Adapters:
  - X1143A
  - X91143A

Both ports on a given ASIC must be set to same configuration.
Changing one UTA2 port configuration will change the second port of the pair to the same configuration automatically.
When ordering any of the UTA2 equipped systems, it will be required to specify the configuration for the UTA2 ports. This will then allow the correct SFP+ for each respective port to be added to the order accordingly.
If the 10GbE configuration is selected and copper connections are required, the correct Cisco Twinax copper cables will need to be explicitly ordered for the respective ports. For cable part numbers, see the NetApp Hardware Universe for the respective system.
For the listed systems, manufacturing will set all UTA2 ports to the configuration based on the order as submitted and install the correct SFP+'s into the ports accordingly for non-copper configurations.
When ordering the X1143A-R6 option, the correct SFP+'s will need to be explicitly added to the order based upon the required configuration (FC or 10GbE). The ports are left in the default FC target configuration when the card is manufactured and will need to be manually configured at installation time.

UTA2 ports will autorange between 4/8/16Gb FC speeds depending upon the back end connected switch configuration.
Ports can be set to either an initiator or a target and can be set for each port explicitly in each port pair; i.e. one port can be an initiator and the other a target.

1GbE is supported on the UTA2 ports as of Data ONTAP 8.2.4 and later as specified in KB: How to upgrade the flash image to support GbE connectivity to FAS2552 and FAS2554 systems with CNA or UTA2 ports, for both the 25XX and 8000 platforms.
For the FAS2650 / AFF A200 and FAS8200 / AFF A300 platforms, the 1GbE speed only requires the correct SFP to be installed in the respective ports.
1GbE is not supported for any of the UTA ports on FAS9000 / AFF A700.
For supported SFP/SFP+ for each respective platform, see KB How to determine the NetApp part number for Brocade and NetApp SFPs.
The system's current UTA2 port configurations can also be seen in a weekly AutoSupport in the UNIFIED-CONNECT.XML section.