Go to the CLIP Centre and
check that the hardware write-protect switch on the AMPEX disk drive front
panel is OFF (i.e. not protected). The tumbler switch should be
pressed/positioned to the left; the ``Read Only'' light should be off.
Go back to the control room and execute the DISPLAY DEVICES command.
Check in the output listing that the
fixed disc with physical name MSMD: is software enabled.
That is, the line commencing MSMD: should read:-
MSMD FC 0000 SYS CDIR
If, instead you find:-
MSMD FC 0000 OFF
you will need to enable the device in software by typing:-
MA MSMD:,ON,,CD=ALL
Type:
FINISH
to remove any running software and reduce the system to a known state.