Subject: Re: When it rains VAXen it pours VAXen....(:+}}...
To: Carlini, Antonio <>
From: NetBSD Bob <>
List: port-vax
Date: 10/13/2000 12:14:02
> >2.  What is the largest drive size the hardware will handle?
> >    I have several RZ55/56/57 drives plus some 2 gig Fuji's,
> >    all from DEC expansion boxes that I would like to load up
> Physically I don't think that they make drives as big as 
> the RD54 anymore :-) so you should be OK with almost anything
> you can lay your hands on.

I will pass on 8 and 14 inchers....(:+}}...  But I was figuring
1 or 2 gig drives would be what I have plenty of to install.

The controller is the dilogic controller.

Are there any tape support bits for dilogic controllers that I
should find, things like formatters, etc?

Anyone have a spare copy or xerox of a dilogic controller manual?
I have essentially nil DEC docs, so am shooting from the hip on
these things.


> >3.  How many scsi drives will the thing actually handle?  It has
> As many as your controller card can handle - probably seven.

I could not get it to recognize a pair of added in RZ56's.
Is there something strange like special formatting or such that
I need to do to get it to recognize more drives?


> >5.  What is needed to hook up a second tape drive into the thing?  I have
> >    a spare TK50 that I would like to try adding into the machine where
> >    the old floppy went, as a secondary tape drive for writing boot tapes.
> >    Anything strange in adding a TK50 where the old floppy went?
> >    (Dip switch addressing and that kind of thing?)
> You can put the TK50 in any bay you like as long as you have a hole
> through which you can insert the tape. You'll need a second tape
> controller of course (with the switches set to the secondary
> address) and you'll have to route the controller cable yourself
> since that was never an expected configuration.

OK, now we are getting to the nittygritty.  What are the switch settings
to use a TK50 as a secondary controller?


> >    No show dev and no test 75 even.  How does one low-level format on
> >    the MVII (from the diags tape?)?
> You need the MDM FS tape. I've never seen one but they must exist somewhere.
> Even that probably would not do anything to your 3rd party SCSI drive.

OK, I have heard of this infamous tape, and I thought I had one in my
tape collection, but I can't seem to find it.  

What is needed for dilogic controller formatting?