Server

Are the servers down and when can we expect them to be fix? I try signing into Halo Reach game and all I get is Failed to write messege on my screen. The next thing I notice is that my rank, my commendation, and armor have been reseted. What is going on? After that issue is reseted, I get a messege saying, I have to much data saved per game and only allow 250 mb but I have 515 mb saved game data, what do I do?