Well... in my attempts to get RL02 drives integreated into my 11/44 system, I have discovered that I have mounted two bad drives (out of a possible 9) in the damn rack. Yesiree.. just the Way it Goes. I rolled in two of the Drives that Dave Jenner so graciously gave me, and lo! they work like the Book says they should. They test good, they load, they come into ready, and the fault light stays mercifully dark. Now: naturally the required drivers for DL devices are not resident when RSTS is booted. Since I am lacking any decent RSTS documentation, and since the 'help' utility is not that much help in this instance, I was wondering if anyone reading the List might be able to help me with finding and loading the correct drivers for 'DL'. I could maybe do this under RT11, but RSTS... d'oh! I have RSTS V9.7 -08 RSTS97 (DB0). It looks like this: $ mount DL0: ^ mount: illegal device name $ (Same for allocate) I have not printed out the installation log, but it is present any help. I will try and provide any more info from the system that might be required, but I confess I don't know exactly what to ask in this situation. Cheers and thanks for everyone's help so far.. Cheers John