Hi.
     
     Thanks to Eun-Kyo Lee and especially Alan Nabeth for the detailed 
     answer.
     
     My problem was that I had put a second HSZ40 into a SW300 cabinet to 
     make a dual-redundant disk system. This controller was unfortunately 
     just torn out of another cabinet. Whenever I tried to:
     
     > SET FAILOVER COPY=OTHER_CONTROLLER
     > SHUTDOWN
     
     I got error messages indicating that the controller could not 
     "rundown" some of its units. I also got an error indicating that 
     dual-redundancy was not configured (right, indeed. That was what I was 
     trying to do). This gave a loop where I could not shut the thing down 
     because it was badly configured and I could not reconfigure it because 
     I could not shut it down...
     
     
     The solution was to remove the original controller, pull out (1 inch) 
     all the disks and then delete all units. There were problems with some 
     of the units, I had to CLEAR_ERRORS UNWRITEABLE_DATA for some of the 
     units. I think that this was the actual cause for not being able to 
     establish the dual-redundancy mode.
     
     After this, everything went fine.
     
     
     
     yours, Lars Bro
Received on Wed Jul 22 1998 - 13:07:23 NZST