I just read an article on The Register saying that the Fibre Channel vendors will begin filling our Inbox's full of propaganda about 8 Gb switches and HBAs next year. Does more than 2% of the market really need that much bandwidth? I know I don't.
The only reason we began switching to 4 Gb switches was because they were cheaper than the 2 Gb model. We just began buying 4 Gb HBAs and until the 4 Gb port cards on my disk subsystems are cheaper than the 2 Gb model I won't buy those either. We just don't need it. I have one application that could even think about filling a 2 Gb pipe let alone a 4 Gb pipe. The vendors are really going to have to convince me with cost that I have to have 8 Gb. Good luck.