The Ceph backup driver backs up volumes of any type to a Ceph back-end store. The driver can also detect whether the volume to be backed up is a Ceph RBD volume, and if so, it tries to perform incremental and differential backups. For source Ceph RBD volumes, you can perform backups within the same Ceph pool (not recommended) and backups between different Ceph pools and between different Ceph clusters. At the time of writing, differential backup support in Ceph/librbd was quite new. This driver attempts a differential backup in the first instance. If the differential backup fails, the driver falls back to full backup/copy. If incremental backups are used, multiple backups of the same volume are stored as snapshots so that minimal space is consumed in the backup store. It takes far less time to restore a volume than to take a full copy. Block Storage enables you to: Restore to a new volume, which is the default and recommended action. Restore to the original volume from which the backup was taken. The restore action takes a full copy because this is the safest action. To enable the Ceph backup driver, include the following option in the cinder.conf file: backup_driver = cinder.backup.drivers.ceph The following configuration options are available for the Ceph backup driver. This example shows the default options for the Ceph backup driver. backup_ceph_conf=/etc/ceph/ceph.conf backup_ceph_user = cinder backup_ceph_chunk_size = 134217728 backup_ceph_pool = backups backup_ceph_stripe_unit = 0 backup_ceph_stripe_count = 0