I found that I cannot select cloud tenant for cloud volume during OpenStack instance provisioning. In this way cloud volume can be provisioned in any (first) cloud tenant another than provisioned virtual machine. Provisioning dialog does not have placement options for cloud volume, only size and name. In multi-tenant environment users reqest VM provisioning for openstack provider and сloud volumes are created in the first cloud tenant, while instances in their own tenant.
Cannot select placement for Cloud Volumes (openstack) and this volumes are created in different tenants during provisioning of the instance
Catalog publication in Multi-Tenancy Environment