Some qbus scores...

From: Megan <>
Date: Sun Jul 11 22:11:45 1999

>The Qniverter won't help you with this. The RH11 in your KS10 uses
>the Unibus in an 18-bit wide mode (see the Unibus handbook for details
>on how the parity bits are chosen to do this), but there are no
>corresponding signals on the Q-bus. The Qniverter therefore generates
>two parity bits based on the Q-bus 16-bit-wide data bus and subs these in
>on the Unibus side.

I was wondering if this would be a problem on my drive back from
the place I got it... Okay, my fears were correct... d**n...

>No 3rd-party Unibus RH11-emulating controller that I ever met does
>18-bit-wide data, either.

Double D**n...

>If you're really serious about using your KS10, there are several
>companies (SETASI, in particular) with off-the-shelf Massbus replacement
>drive systems. Other companies (like Wilson Labs) make SCSI-to-Massbus
>converters. These, IMHO, are the solutions you should be looking at if

I'm serious, but my finances would not allow that (I'm sure it *is* a
case of "If you have to ask, you can't afford it").

>you've decided that you don't want RM's and RP's in your computer room
>I know several folks running KS10's at home, in one case *two* KS10's
>with 4 big Massbus disks and two TU77's. I *did* warn you that you

Would I know these people ? :-)

>wanted 3-phase power run in before you got your KS10, didn't I ? :-)

Yes, you did... But if I had waited for it to be run in before I
took it, I would have lost out on the chance of getting it. And they
are getting scarce, especially ones in the condition this was...

                                        Megan Gentry
                                        Former RT-11 Developer

| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry! |
| Unix Support Engineering Group | (home): mbg! |
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Received on Sun Jul 11 1999 - 22:11:45 BST

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