Estimate Transfer Time

Hi,

Not sure whether this is the relevant place for such question, but I hope can get some feedback on my question.

I have 2 Sun machine. Basically I want to move some data from one box to another box using dedicated fiber connection. I would like to estimate the time required for the transfer. Anyway I can calculate/estimate the time required if the total size is 100GB over the fiber connection?

Thanks.

Move half a GB and time how long that took. Multiply that result by 200.