This statistic shows Fibre Channel bytes/sec requested by initiators to the appliance.
See Protocol: iSCSI bytes for an example of a similar statistic with similar breakdowns.
Fibre Channel bytes/sec can be used as an indication of FC load, in terms of throughput. For a deeper analysis of FC activity, see Protocol: Fibre Channel operations.
See the SAN page for terminology definitions.
See Protocol: Fibre Channel operations for numerous other breakdowns on FC operations; also see Cache: ARC accesses broken down by hit/miss to see how well an FC read workload is returning from cache, and Disk: I/O operations for the back-end disk I/O caused.