Disk-to-disk
Encyclopedia
The term "disk-to-disk", or "D2D", generally refers to disk-to-disk backup. With D2D, a computer hard disk is backed up to another hard disk rather than to a tape or floppy. D2D is often confused with virtual tape, but differs in that it enables multiple backup and recovery operations to simultaneously access the disk directly by using a true file system.
s are closely related to D2D backup as they are most often stored remotely on disk. The only major difference is that the data tends to be held at a remote location and these services are often provided by Managed backup providers.
Typical advantages of disk-to-disk
- Higher speed and higher capacity, relative to tape or floppy, resulting in shorter backup and recovery windows.
- Non-linear recovery of data, enabling a specific file to be restored quicker and simpler than with tape.
- Lower total cost of ownership due to increased automation and lower hardware costs.
Remote backup services
Remote backup serviceRemote backup service
A remote, online, or managed backup service is a service that provides users with a system for the backup and storage of computer files. Online backup providers are companies that provide this type of service to end users ....
s are closely related to D2D backup as they are most often stored remotely on disk. The only major difference is that the data tends to be held at a remote location and these services are often provided by Managed backup providers.