The final phase of the transfer optimization process, Phase 4, includes the selection of an appropriate transfer mechanism.
DTS supports three data transfer mechanisms.
The default is the point-to-point mechanism. DTS automatically decides which mechanism to use, by the specification of the active transfers and the configuration of the network.
When activating multiple transfers through a transfer group, use of the point-to-point mechanism involves multiple reads, multiple sends (across the network), and multiple writes for each parcel of data processed. However, fanout results in a single read, with multiple sends and multiple writes.
The most efficient mechanism is point-to-many, which means a single read, a single send, and multiple writes. However, it is not possible to use fanout or point-to-many unless the transfer objects involved have certain property values in common.
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