Currently, a vNIC or vHBA cannot be deleted from an Oracle Solaris host if that vNIC or vHBA is part of Oracle VM Server for SPARC or Oracle Solaris zone. To delete such vNIC or vHBA, you must first disassociate the vNIC or vHBA from Oracle VM Server for SPARC or Oracle Solaris zone, and then delete the vNIC or vHBA.