I am using RDO Juno on CentOS 7 and currently am trying to change an existing volume attached to an openstack instance. The cinder node is a separate one from the compute node with mentioned instance. On cinder node I am using LVM backend with ISCSI. I noticed that when I create a volume in cinder it is created as a linear one in LVM and I would like to change it to a stripped one to take advantage of multiple physical disks available.

Is there a way to manually create a LVM volume, notify iscsi daemon on cinder node to export it and the mount it on the target instance? Any howto about that? ;)

Or maybe is there a way to tell cinder to create stripped logical volumes in LVM backend by default (instead of linear ones)?

BR,

Rafal.