Hey Sinat,
The error message suggests that you have volumes that use the volume type you're modifying. If yes, with cinder API, since the Rocky release [1], you cannot modify volume types that are currently in use. The original design for cinder volume types was that they were always mutable - and changes to existing volume types didn't affect pre-existing volumes. However, this behavior was modified in the Ocata release [2], and finally removed in the Rocky release.
One of your options is to also rename the existing volume type and create a new one if you'd like, with the original name.
[1] https://docs.openstack.org/releasenotes/cinder/rocky.html#relnotes-13-0-0-st... [2] https://review.opendev.org/#/c/440680/
On Thu, Nov 7, 2019 at 12:33 AM Sinan Polat sinan@turka.nl wrote:
Hi,
I am using Ceph as the backend for Cinder. Within Ceph we have defined 2 RBD pools (ssdvolumes, sasvolumes). In OpenStack I created 2 Volume Types (ssd, sas). Each Volume Type has property "volume_backend_name='tripleo_ceph_<ssd|sas>'".
In the Cinder configuration I have the following backends configured:
[tripleo_ceph_ssd] backend_host=hostgroup volume_backend_name=tripleo_ceph_ssd volume_driver=cinder.volume.drivers.rbd.RBDDriver rbd_ceph_conf=/etc/ceph/ceph.conf rbd_user=openstack rbd_pool=ssdvolumes
[tripleo_ceph_sas] backend_host=hostgroup volume_backend_name=tripleo_ceph_sas volume_driver=cinder.volume.drivers.rbd.RBDDriver rbd_ceph_conf=/etc/ceph/ceph.conf rbd_user=openstack rbd_pool=sasvolumes
As you might have noticed, the backend name (tripleo_ceph_ssd) and the RBD pool name (ssdvolumes, not ssd) does not match. So far, we do not have any problems. But I want to correct the names and I do not want to have the mismatch anymore.
So I want to change the value of key volume_backend_name for both Volume Types (tripleo_ceph_ssd => tripleo_ceph_ssdvolumes).
I tried the following: $ openstack volume type show 80cb25ff-376a-4483-b4f7-d8c75839e0ce +--------------------+----------------------------------------+ | Field | Value | +--------------------+----------------------------------------+ | access_project_ids | None | | description | | | id | 80cb25ff-376a-4483-b4f7-d8c75839e0ce | | is_public | True | | name | ssd | | properties | volume_backend_name='tripleo_ceph_ssd' | | qos_specs_id | None | +--------------------+----------------------------------------+ $
$ openstack volume type set --property volume_backend_name='tripleo_ceph_ssdvolumes' 80cb25ff-376a-4483-b4f7-d8c75839e0ce Failed to set volume type property: Volume Type is currently in use. (HTTP 400) (Request-ID: req-5efaa5b7-910f-4802-8494-3115cfc4ab93) Command Failed: One or more of the operations failed $
How to solve my problem?
Thanks!
Sinan