Copy stage
The Copy stage copies a single input data set to a number of output data sets.
Each record of the input data set is copied to every output data set. Records can be copied without modification or you can drop or change the order of columns. To copy with more modification, such as changing column data types, use the Modify stage. Copy lets you make a backup copy of a data set on disk while performing an operation on another copy. It is a processing stage.
Where you are using a Copy stage with a single input and a single output, you should ensure that you set the Force property in the stage editor TRUE. This prevents IBM® DataStage® from deciding that the Copy operation is superfluous and optimizing it out of the job.