docs/doc/source/storage/openstack/storage-configuration-and-management-storage-on-storage-hosts.rst

Storage on Storage Hosts

creates default Ceph storage pools for Glance images, Cinder volumes, Cinder backups, and Nova ephemeral data object data.

For more information, see the : Storage Resources <storage-configuration-storage-resources> guide for details on configuring the internal Ceph cluster on either controller or storage hosts.