DataKeeper for Windows All Documentation - SIOS

DataKeeper Target Snapshot5. Right-click on the disk(s) to bring it online.6. Initialize the disk(s).7. Create the new volume and assign the drive letter.8. Configuration is now complete.DataKeeper Target SnapshotOverviewDataKeeper's target snapshot feature, integrated with both DataKeeper and DataKeeper Cluster Edition, isthe process of creating point in time copies of replicated volumes allowing access to data on a standby clusternode without impacting operations such as switchovers and failovers. Data protection is not lost for anyperiod of time. Enabling target snapshot allows data to be used on an otherwise idle target node withoutnegatively impacting the performance of the source.Without target snapshot, DataKeeper and DataKeeper Cluster Edition are able to maintain a real-time replicaof their source system’s data on the target system. However, this replica cannot be accessed without pausingthe mirror and unlocking the target system. Mirror failover and switchover cannot occur while in this pausedand unlocked state, making the protected application less highly available. Application-consistent targetsnapshot allows access to data on the target system while maintaining high availability of the runningapplication on the source system. The mirror remains in the mirroring state and continues to update thetarget volume with all writes from the source. Target snapshot integrates with Volume Shadow Copy Service(VSS) to ensure that the data which is exposed on the target system is in an application-consistent state.DataKeeper for Windows Technical DocumentationPage 130