ok, I found the answer just in case any one else is looking for the same.
Get-UcsServiceprofile -type instance | Get-UcsVnic | select-object name, switchid
name Switchid
vNIC0 A
vNIC0 A-B
vNIC1 B
- If the switch says “A” it is connected to FABRIC-A
- if the switch says B it is connected to FABRIC-B
- if the switch says A-B (A is primary) or B-A (B is primary) it is configured for fabric fail over