Continuous data protection
Continuous Data Protection (CDP), often also called Continuous Backup or Real Time Backup , is a method for continuous, incremental data backup . CDP is used to protect data sets against the effects of corrupted data that was only noticed some time after its adverse manipulation. Restoration at any point in time not defined in advance is possible.
Characteristics
Continuous data protection differs from the traditional backup concept in that no specific point in time (the point in time at which the last backup was created) has to be specified for the restore. Backup processes initiated by the user are superfluous because the backup system recognizes in the background when data has been changed and takes this changed status into account as part of the ongoing backup. Usually, when data is saved to an internal data carrier, it is also written asynchronously to a remote data carrier. If the remote data carrier described by means of a network connection is outside of your own organization, this is often referred to as online backup .
advantages
The advantages of Continuous Data Protection are the significant reduction in the time required to restore the data and to resume normal operations, as well as the lower risk of data loss.
Risks and Disadvantages
Although continuous data protection is suitable for increasing data security in organizations, the challenges and risks associated with it should also be considered: CDP provides additional data traffic and requires a certain minimum bandwidth so as not to weaken network performance, especially if the data to be backed up is in large files exist. Internal and external networks must be checked for suitability with regard to their security.
Individual evidence
- ^ Off-Site Backup - The Bandwidth Hog