rebuilding /re-registering UCS Central (MAC/WWPN issues?)

[kalpeshpattni]

Hello,

My Standalone UCS Central VM has failed and we have no backups!! I need to rebuild a new UCS Central server. The old UCSC VM had MAC and WWPN pools configured. Has anyone ever had to unregister a UCS Central server and register a new one into the same environment.

How will the existing environment deal with the registration of a new UCSC?

Could I build a new server and recreate the pools in the same format? (Would it create conflicts as the existing services have been allocated MAC and WWPN already from this 'new' pool)

Cheers, KP

[Walter Dey]

a few questions:

- do you intend to reinstall UCSC from scratch, or just do a reset of the UCSC VM ?

- you create global pools for MAC and WWPN ? do you also have global service profiles, or local service profiles using global MAC ... Pools

- I believe the values of the global pool, consumed by any local service profile, still exists.

[kalpeshpattni]

Hi Walter,

Unfortunately, I need to install UCSC from scratch and register it with my UCSMs.

I intend on reusing the hostname and IP

Luckily, we have no global service profiles (only local profiles and templates) but we do allocate WWPN, WWNN, UUID, MAC via UCS Central. I believe these will be preserved when I unregister the old server.

I wanted to also recreate the above pools in the same format/same range but wanted to make sure the new UCSC didn't provide existing IDs consumed by local profiles only available IDs.