BakBone White Paper Sample
Disk can be incorporated into the backup process in many ways, from virtual tape libraries (VTLs) through snapshots to continuous data protection (CDP), and each method may suit some applications
or user requirements better than others. An organization may even use more than one D2D backup scheme in parallel, in order to address different recovery needs.
Disk is also used in many other forms of data protection, such as data replication and mirroring, although it is important to understand that these are not backups. They protect against hardware failure or disasters, but they cannot protect against data loss or corruption as they offer no rollback capability.