I got the answer by myself. Share it.
vi /etc/ironic/ironic.conf
enabled_drivers=pxe_ilo
2014-12-05 17:17:04.972 32582 TRACE stevedore.extension DriverLoadError: Driver IloVirtualMediaIscsiDriver could not be loaded. Reason: Unable to import proliantutils library.
The resolution:rpm -ihv python-proliantutils-0.1.1-1.noarch.rpm
# ironic driver-list
+---------------------+----------------+
| Supported driver(s) | Active host(s) |
+---------------------+----------------+
| pxe_ilo | hpc7000-slot4 |
+---------------------+----------------+
enroll node:
ironic chassis-create
ironic node-create -c 26334079-a57e-456d-a02b-0db7cb023361 -d pxe_ilo -i ilo_address=10.42.146.88 -i ilo_username=Administrator -i ilo_password=79466386
ilo driver? you mean ipmi driver in ironic?
Yes. I already got the answer by myself. Thanks.