I have deleted the instances through nova as you suggested, I then see them being cleaned , which is Good! >
(undercloud) [stack@interop010 ~]$ openstack baremetal node list
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| UUID | Name | Instance UUID | Power State | Provisioning State | Maintenance |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| 97b9a603-f64f-47c1-9fb4-6c68a5b38ff6 | interop025 | None | power on | clean wait | False |
| 4b02703a-f765-4ebb-85ed-75e88b4cbea5 | interop026 | None | power off | cleaning | False |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
And after a while they become available >
(undercloud) [stack@interop010 ~]$ openstack baremetal node list
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| UUID | Name | Instance UUID | Power State | Provisioning State | Maintenance |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| 97b9a603-f64f-47c1-9fb4-6c68a5b38ff6 | interop025 | None | power off | available | False |
| 4b02703a-f765-4ebb-85ed-75e88b4cbea5 | interop026 | None | power on | cleaning | False |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
now I can start deployment as planned.
Igal
are provisioned (active) are not able to be moved to manageable state.