24 Sep
2004
24 Sep
'04
10:04 a.m.
Paul,
While I'm willing to accept that mixed drive type strings are
possible and supported, I don't see how the quote below supports that.
At 8:04 PM -0400 9/23/04, Paul Koning wrote:
That's not what I read in the statement above. IIRC, my /70 supports
up to 4 RH70s. The statement above seems to indicate that they
removed a restriction where one must boot from drive 0 of a
particular RH70. The statement itself doesn't indicate that I can
have multiple drive types on the same RH70.
> Best rule
for SIMH or E11 purposes is NOT to mix "RM" and "RP"
> drives on a single RH11/RH70.
The thing I was trying to remember about mixed drives and booting is
described by this paragraph in the RSTS V9.0 Update Seminar document
(page 2-7):
Multiple RH controllers for disks (DB and DR) have
always been supported by RSTS. The support for this
has been improved in V9 by allowing the booting of
disks on either controller regardless of drive type.
Previously, there was a restriction if the same drives
were on different controllers, you could only boot the
one on the primary controller.
So the answer for RSTS is (a) mixed drives are supported, (b) if you
mix on both RP/RM massbus controllers, boot the primary unless you're
running V9.0 or later.
Yes, I agree, this seems to be the case.
Do you have something that explicitly states multiple drive types are
supported on a single RH70?
Thanks,
John