symmetrix port metrix

hello

in Ionix ControlCenter Performance Manager Metrics Glossary there is some explanation about symmetrix port metrix:

%util = Throughput KB/s  divided by a fixed number based on the type of port

my question is what is the value of the fixed number based on the type of port

I retrieve some value from preformance manager ( Throughput - %util)

and then i can caluculate this number.

i obtain alway: this value: 2100   

----> so for 100% util the throughput have to be 210MB/s but yet i'm on VMAX (FA port 8Gb/s)

can you please explain this ?

thanks for your reply