On Mon, 17 Nov 1997 zach@acsu.buffalo.edu wrote:

> 
> As of late I've run into some problems with my uVaxII, and attaching
> extra drives. I think I've got the hang of it, now if I can just get
> at the RD53 I trashed, and maybe at my files there...
> 
> In the interest of keeping this message short: Does anybody know any
> reason why more than one RD31 (20M Seagate drives) won't work in a BA23
> chassis? I've tried many combinations, including permutations using RD5x
> drives (where 1<= x <=4). Most of the time I get a lockup.  I watch it
> poll drive 0, and then drive 1, but it never releases drive one and the
> drive stays active (accessed? The light goes on, but nobody's home.)

If I recall correctly, you can only put one hard driver in a BA23.
That's all, no more.

Tom

> 
> A friend suggested removing the terminating resistors, best I can make
> out it's the resistor pack on the bottom of these puppies. I can't seem
> to find one on the RD54 unless it's hard-soldered in. Assuming that's
> the terminator on the 31's, I've tried with both in, with either out,
> and with both out. The results never change, and even without this
> resistor pack drive 0 still boots when solo. That fact never changes, I
> can always boot solo. I've even had some cases where the machine
> reports 3 drives when there are 2. That I don't understand either.
> 
> In all cases, drive 0 is at target 3, and drive 1 is at target 4.
> For the curious... Giving them both the same target id makes the system
> attempt to access both. This mostly has bad results, although I had one
> case where I thought the results were usable.
> 
> Oh yeah, the configuration when all this was going on:
> BA23 chasis
> 	Slot 0: KA630 module
> 	Slot 1: 4M memory board
> 	Slot 2: RQDX3 (rev 3, I think)
> 
> Zach
> 

--
Thomas Traylor
Thomas.Traylor@mci.com
ttraylor@titan.mcit.com
(719) 535-1269