Node-to-node distances for Fibre Channel attachment

DS8000® supports Fibre Channel adapters for extended node-to-node distances.

For a list of longwave and shortwave adapter cables and their distances, refer to the table.

Table 1. Connection speed and distance by cable type
Cable type Speed Distance
OM2 16 Gbps 35 m (115 ft)
OM3 16 Gbps 100 m (328 ft)
OM4 16 Gbps 125 m (410 ft)
OM2 32 Gbps 20 m (65 ft)
OM3 32 Gbps 70 m (230 ft)
OM4 32 Gbps 100 m (328 ft)

For Fibre Channel attachment, the maximum distance between the following items is 10 km (6.2 miles):

  • Fabric switches
  • Host Fibre Channel port
  • Link extenders
  • Storage system Fibre Channel port

The maximum distance might be greater than 10 km (6.2 mi) when a link extender provides target initiator functions or controller emulation functions.

Do 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.