Synchronization Methods
DataSync offers four options to synchronize the source data:

Method | Description
Automatic | This is the default option. Except for the first synchronization, when a Full Reload is performed, subsequent synchronizations will attempt to use a CRC algorithm to detect and synchronize only changed, inserted, or deleted records. This can cause dramatic improvement in synchronization times.
Incremental Update | Performs an Incremental Update, if possible. If not, a Full Reload synchronization is performed.
Full Reload | This will do a Full Reload synchronization from the source to the target.
Incremental Only | In some cases, an Automatic synchronization will revert to a Full Reload; for example, when the number of records changed have exceeded a threshold. When Incremental Only is selected, under NO circumstances will the data be dropped and reloaded to the target. This is advantageous when source data is operational 24x7.