The storage unit supports fibre-channel adapter for extended node-to-node distances.
See IBM® System Storage™ DS6000™ Introduction and Planning Guide for a list of longwave and shortwave adapter cables and their distances.
For fibre channel, the maximum distance between the following items is 11 km (6 mi):
The maximum distance might be greater than 11 km (6 mi) when a link extender provides target initiator functions or controller emulation functions.
You should not use link extenders with emulation functions on links over which Remote Mirror and Copy operations are performed. This is because of the additional path delay introduced by these units.