Without knowing your environment, it is hard to say specifically how it should look. But to give an example.
Here I have a ceph_ssd backend defined. It contains all the information I would need to connect and use the backend [ceph_ssd] volume_backend_name=ceph_ssd volume_driver=cinder.volume.drivers.rbd.RBDDriver rbd_ceph_conf=/etc/ceph/ceph.conf rbd_user=volumes rbd_pool=ssd_volumes rbd_max_clone_depth=2 rbd_flatten_volume_from_snapshot=True rbd_secret_uuid=<redacted> backend_host=<redacted> After you have this up, you will see the volume service go active in your cinder-volume.log. At that point you can define your volume type and then add the extra specs tying that volume type to the backend. Something like this volume_backend_name ceph-ssd Also, you can always use your cinder service-list to find out the status of your backend you defined. In my lab I would see this: | cinder-volume | <redacted>@ceph_ssd | nova | enabled | up | 2016-07-22T14:02:59.000000 | - | Craig DeLatte Cloud Engineering & Operations – OpenStack DevOps Charter 704-731-3356 610-306-4816 From: Alexandra Kisin Date: Wednesday, July 20, 2016 at 9:47 AM To: Time Warner Cable Cc: "openstack-operators@lists.openstack.org<mailto:openstack-operators@lists.openstack.org>" Subject: Re: [Openstack-operators] Cinder attach volume Thank you for the prompt respond. How should [SATA] section look in /etc/cinder/cinder.conf file ? Regards, Alexandra Kisin Servers & Network group, IBM R&D Labs in Israel Unix & Virtualization Team ________________________________ Phone: +972-48296172 | Mobile: +972-54-6976172 | Fax: +972-4-8296111 [cid:_2_0EC6EFE80EC6ED7C004AB8FCC2257FF6] [IBM] From: "Delatte, Craig" <craig.dela...@twcable.com<mailto:craig.dela...@twcable.com>> To: Alexandra Kisin/Haifa/IBM@IBMIL, "openstack-operators@lists.openstack.org<mailto:openstack-operators@lists.openstack.org>" <openstack-operators@lists.openstack.org<mailto:openstack-operators@lists.openstack.org>> Date: 20/07/2016 04:13 PM Subject: Re: [Openstack-operators] Cinder attach volume ________________________________ So the volume type error will require a copy of your cinder.conf. Or you can just verify you have a [SATA] section in it. Also, volume type to my knowledge won’t change how libvirt presents the volume to the instance. I am not sure it can be changed, or at least never had to explore trying to do what you are needing to do. Craig DeLatte Cloud Engineering & Operations – OpenStack DevOps Charter 704-731-3356 610-306-4816 From: Alexandra Kisin Date: Wednesday, July 20, 2016 at 9:02 AM To: "openstack-operators@lists.openstack.org<mailto:openstack-operators@lists.openstack.org>" Subject: [Openstack-operators] Cinder attach volume Resent-From: Time Warner Cable Hello. I'm working on Liberty Openstack environment using ibm.storwize_svc.StorwizeSVCDriver as volume_drivert. When I'm creating a new volume and attaching it to the VM - by default it will be /dev/vdX on the instance using virtio driver. And this way everything is working fine. But I need it to be /dev/sdX for my application needs. I tried to create a new type of the volume by running : cinder type-create SATA cinder type-key SATA set volume_backend_name=sata But when I start a volume create process , it fails - the new volume has error state and the error in cinder-scheduler.log is : ERROR cinder.scheduler.flows.create_volume Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid host was found. No weighed hosts available Please advise how a volume can be attached as /dev/sdX device and not /dev/vdX. The solution of stop the VM first and only then attach a volume can also be taken in account. Thank you. Regards, Alexandra Kisin Servers & Network group, IBM R&D Labs in Israel Unix & Virtualization Team ________________________________ Phone:+972-48296172 | Mobile:+972-54-6976172 | Fax:+972-4-8296111 [cid:_2_0EC757A40EC944C4004AB8FCC2257FF6] [IBM] ________________________________ This E-mail and any of its attachments may contain Time Warner Cable proprietary information, which is privileged, confidential, or subject to copyright belonging to Time Warner Cable. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout. [attachment "ATT00001.jpg" deleted by Alexandra Kisin/Haifa/IBM] [attachment "ATT00002.gif" deleted by Alexandra Kisin/Haifa/IBM]
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