Very useful info. Thanks!

I was using the ts to install rsts 10.1 because others said they could not
with other drives but I tried with te16 drives it worked so now I can use
more than one drive again.

On Fri, Sep 16, 2016, 10:43 AM Johnny Billquist <> wrote:

> On 2016-09-16 18:13, Gene Irwin wrote:
> > Simh seems to only support a single Ts11 drive.
> >
> > The quick reference guide for the drive specifies up to 4 drives.
> >
> > Am I missing something or is thus just not coded in?
> I would guess it's just a coded limitation in simh. In fact, there is no
> real limit to the number of TS11 you can connect to a PDP-11.
> It's just a Unibus device with a bunch of CSRs. You can always just add
> another card, if you wanted to, in the floating address space in the I/O
> page, until you run out of space, which definitely fits way more than
> four controllers.
> But I suspect the four controller limit specified in the manuals are
> because of power and/or throughput limitation on the bus.
> simh have lots of such limitations and restrictions on various devices
> you can add.
>         Johnny
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