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vCon to Adapter Placement
Cisco UCS Manager maps every vCon in a service profile to a physical adapter on the server. How that
mapping occurs and how the vCons are assigned to a specific adapter in a server with two adapters depends
upon the type of server. You must consider this placement when you configure the vNIC/vHBA placement
policy to assign vNICs and vHBAs to vCons.
vCon to adapter placement is not dependent upon the PCIE slot number of the adapter. The adapter numbers
used for the purpose of vCon placement are not the PCIE slot numbers of the adapters, but the ID assigned
to them during server discovery.
Note
vCon to Adapter Placement for N20-B6620-2 and N20-B6625-2 Blade Servers
In these blade servers, the adapters are numbered left to right, but vCons are numbered right to left. If the
server has a single adapter, all vCons are assigned to that adapter. However, if the server has two adapters,
the vCons are assigned to the adapters in reverse order, as follows:
• Adapter1 is assigned vCon2 and vCon4
• Adapter2 is assigned vCon1 and vCon3
vCon to Adapter Placement for All Other Supported Servers
For all other servers supported by Cisco UCS, the vCon assignment depends upon the number of adapters in
the server, as follows:
Table 11: vCon to Adapter Placement by Number of Adapters in Server
vCon4 AssignmentvCon3 AssignmentvCon2 AssignmentvCon1 AssignmentNumber of Adapters
Adapter1Adapter1Adapter1Adapter11
Adapter2Adapter1Adapter2Adapter12
Adapter2Adapter3Adapter2Adapter13
Adapter4Adapter3Adapter2Adapter14
vNIC/vHBA to vCon Assignment
Cisco UCS Manager providestwo options for assigning vNICs and vHBAs tovCons through the vNIC/vHBA
placement policy: explicit assignment and implicit assignment.
Explicit Assignment of vNICs and vHBAs
With explicit assignment, you specify the vCon and, therefore, the adapter to which a vNIC or vHBA is
assigned. Use this assignment option when you need to determine how the vNICs and vHBAs are distributed
between the adapters on a server.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
430 OL-25712-04
Configuring vNIC/vHBA Placement Policies