KERNSAFE - iSCSI SAN Software and Storage Virtualization

Continuous Data Protection, or CDP, is a form of real-time data protection. It records changes as they occur and allows recovery to a precise point in time, often with millisecond-level granularity.

KernSafe Storage Center provides true CDP rather than interval-based protection that depends on periodic snapshots. Snapshot-based approaches preserve only selected recovery points, while true CDP records changes continuously and therefore offers much finer recovery precision.

True CDP also differs from mirroring and replication. Mirroring and replication typically preserve only the most recent consistent copy of the data. If corruption is replicated before it is detected, the recovery window can be limited. With CDP, you can roll back to an earlier point before the corruption occurred.

KernSafe CDP is also storage-efficient because it records only changed data blocks instead of rewriting the full data set for each recovery point.

To create a CDP device in KernSafe Storage Center, see the Create CDP Device topic. The CDP datastore keeps the most recent state together with the recorded block changes required for point-in-time recovery.

After the base CDP target is created, you can create a linked target from the datastore at a selected point in time. In other words, you can expose an earlier data state as a separate target with point-in-time precision.