This solution requires IBM® Metro
Mirror (PPRC).
PPRC is implemented and branded as IBM System
Storage® Metro Mirror for the IBM Enterprise Storage
Server® (ESS) and it is available with the IBM DS8000® family
of products.
Most GDPS® installations
rely on IBM storage products,
however, the external interfaces for PPRC have also been licensed
by other enterprise storage vendors. This means that you can select
the disk subsystems that best match your requirements and to mix and
match disk subsystems from different storage vendors within the context
of a single GDPS solution.