Hi,

I would like to know if in FMS2 is possible to record and broadcast at the same time.

I want to record it in the server disk.

If you pass "append" for howToPublish, Flash publishes and records live data,
appending the recorded data to a file named name.flv, stored on the server in a
subdirectory within the directory containing the server application. If no file
named name.flv is found, it is created.

Quoted from the Client-Side reference guide of FMS2. I'd suggest you'd read
the docs, they are filled with many, surprisingly, interesting things.

You can find the help you want (and need) at item "NetStream.publish()"