SnapSync is a disaster recovery solution that enables you to back up data from the local NAS to another QNAP NAS using block-level replication in real time. This means that whenever data is written to the source NAS, it is also immediately written to the destination NAS. This reduces the backup time and lowers the risk of data loss.
Note:
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You can also configure SnapSync to run periodically on a schedule (Scheduled SnapSync), in order to save system resources.
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SnapSync encrypts data during transmission using AES-256 encryption.