[Openstack-operators] Cinder attach volume
Delatte, Craig
craig.delatte at twcable.com
Wed Jul 20 13:12:47 UTC 2016
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 at lists.openstack.org<mailto:openstack-operators at 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
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