I have been trying to resolve a problem on my NT hardware raid server which seems to have got me stumped. The problem is every time I copy large files say 50Mb upwards to the Raid drives on the server the network slows down. I can copy from the raid drives with no problem. The silo has nine UW drives connected to the server via a DPT 3334uw raid card. Does anyone have any ideas or experienced the same problem ?