Will an Incremental Synchronization Overwrite Existing Data on a Launched Target Server?
Whether an incremental synchronization overwrites existing data on a target server depends on the migration method used. The existing data on target server will be overwritten by data from the source server.
Reasons
- Linux file-level synchronizations depend on rsync. During a synchronization, data changes are identified by comparing data on the source and target servers. These changes will be synchronized to the target server, and existing data on the target server will be overwritten or deleted.
- Block-level migrations are performed by block by block. During a synchronization, the system identifies the differences between disk blocks on the source and target servers. It does not compare the data stored on those disk blocks. The changed disk blocks on the source server will be synchronized to the target server, and new data on the target server will be overwritten.
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