Firstly, failed to plumb ce0 is probably as simple as ce0 interface does not exist on this hardware. Solaris tries to plumb this because you have a file /etc/hostname.ce0 existing on the root...
You could "grep net /etc/path_to_inst" file, it may be that the device definitions in that file will give you a clue, but you'd have to be familiar with the servers.
Be clear!!!!!You require wwn number of hdd or HBA card.If it is HBA card it is fcinfo hba-port or prtconf -pvv | grep wwnIf it is HDD then you will have to look in /devices directory.