Similar in format to WWNNs, a WWPN is a 64-bit address assigned to individual vHBAs in servers. The WWNN for the vHBAs in a blade server is always identical, whereas the WWPN is always unique. Storage zoning is done using the WWPN addresses.

The following are the steps to create WWNN address pools:

1. Log in to the UCSM screen.
2. Click on the SAN tab in the navigation pane.
3. Click on the Pools tab and expand root.

4. Right-click on WWPN Pools, and click on Create WWPN Pool, as shown in the following screenshot:

5. In the pop-up window, assign the Name and Description values to the WWPN pool.
6. The selection of Default as the Assignment Order value is random. Select Sequential to assign WWPNs sequentially.

7. Click on Next:

8. Click on Add on the next screen.
9. In the pop-up window, change Size to create the desired number of WWPN addresses.

10. Click on OK and then on Finish, as shown here:

11. In order to verify the WWPN pool, click on the WWPN Pools tab in the navigation pane, and click on the Initiators tab in the work pane as shown here: