Malik,

Have you created 'mystoragetype' with 'openstack volume type create' ?  If not, I believe the backup behavior is to use __DEFAULT__ .  https://docs.openstack.org/cinder/latest/admin/blockstorage-volume-number-weigher.html#volume-type

You will need to restart Cinder after creating the volume type and updating cinder.conf.

Hope this helps.

Jay

Hi,

I am creating nova instance with cinder backed iscsi storage. I have created multiple storage types. But my launched instance from image use storage type __DEFAULT__ for flavor's root volume.

I have changed default_volume_type to mystoragetype in cinder.conf but instances root volume still goes in __DEFAULT__ storage type.

However new volume creation in mystoragetype is successful.

Need help, how can I set instance root volume storage type during its deployment ?

Regards,

Malik Obaid