On Tuesday, January 2, 2024 at 11:29:36 AM PST, thomasdzubin--- via cctalk <[email protected]> wrote:
> Can I install the KFQSA card in my 4000-200, disconnect the internal disks > from the SHAC and connect the disks to the KFQSA thereby allowing NetBSD >to > run? Ive read (here?) that he BA430 has special magic which connects the KA660's SHAC to the internal DSSI bus, via the Q22 fingers. The KA660 ROM has built-in machinery to configure DSSI, both the onboard SHAC and a KFQSA. So in theory, you could use the KA660 boot-rom to configure the KFQSA.to a different DSSI node number (not already in use). Connect the KFQSA to the "end" of the internal DSSI bus, via the DSSI bulkhead. NetBSD won't recognise the SHAC, so you shouldn't need to disconnect the internal DSSI bus, at least for manually booting from the KFQSA rather than the SHAC. I have not yet tried this myself, though -- my BA430 has a KN220.
