You can improve overall system performance by setting a short-distance straight path as a preferred I/O path if a redundant path connects a server and a storage system in a GAD configuration contains a short-distance straight path and a long-distance cross path.
By setting the short-distance straight path as a preferred I/O path, you can suppress I/Os to and from the inefficient long-distance cross path. As a result, overall system performance can be improved.