I would go one step further with unitcontrol.
I would use it in the user-startup to set your
drive parameters like you want. I never had any luck
with the BIOS settings alone. You can also set
for SNYC operation in the RDB if you like, but the
unitcontrol command line is probably the least painful
to set up. No worry of accidently screwing up your
RDB.
C Snyder