Data integrity after a failure

The data integrity after a failure depends on the COPY-MODE set (processing mode SYNCH, ASYNCH or ASYNC-STACK). The ASYNC-STACK processing mode does not provide data integrity.

If a link or device error occurs before or during a failure, the source and target units will no longer be synchronized. In other words if the internal synchronization process in processing mode SYNCH or ASYNCH is interrupted, the source and target units will receive inconsistent data.
This is also the case when the synchronization process initiated with /RESUME-REMOTE-COPY is interrupted.