You mention that you have and FC san working with ESX server, there are a few of us that are having issues getting this to work. Could you let us know what FC cards you are using, and what switch if you are using one.
We are seeing issues with the 2340, 2310F and 2342's. We are not trying to boot from San, just want to store VM's on it. I can create a LUN that is seen by ESX, but once it is formated with VMFS, the troubles start. Unable to create a new VM, We see lots of Timeout retries on both ESX and DSS. Then the DSS server has to be powered off and on again.
So if you could let me know what cards you have working would be good, also what bios you are running on them.