Changing WWPN of a vHBA once derived from a Pool

[SandevChopra07800]

Hi Folks, we are migrating UCS B-series servers from old Fabric Interconnects to new ones. Both the environments are managed by UCSM and use native fibre Channel. As part of the migration, we want to maintain the same WWPN on the vHBAs as the previous ones. So a similar WWNN and WWPN pool was created on the new FIs.

The plan is to move servers one by one from old to new FIs, but when the server inherits the service profile from the service-profile template in the new environment, it picks up any random WWPN from the block. Is there a way to go to the service profile and change it manually to what its previous WWPN was in the old environment so that we don't have to change the FC zoning rules upstream? 

[Anne165Hernadez]

Hello!

When migrating UCS B-series servers and wanting to maintain the same WWPN on the vHBAs, you can manually modify the WWPNs in the service profile to match the addresses from the old environment. Unbind the vHBAs from templates, navigate to the vHBAs object in the Servers tree view within UCS Manager, and modify the WWPNs for each vHBA. This approach allows you to maintain consistent WWPNs without changing FC zoning rules upstream.

Regards,

labcorp results

[SandevChopra07800]

thanks Anne, so I unbind the SP from the template and manually modified the WWPNs on both the vHBAs. Now after the reboot, I need to bind it back to the template so that it takes rest all of the other settings. Is this going to overwrite the vHBAs again ?