RD54 and RT-11 5.4D

From: no <oliv555_at_arrl.net>
Date: Sun Nov 4 01:39:43 2001

Eric Dittman wrote:
>
> Okay, I'm back from a DR exercise and have started trying to get
> this PDP-11/73 working with RT-11. I have a copy of the XXDP
> formatter now, and trying to format the hard drive gives this
> error:
>
> Unit Cylinders Drive Name
> 0 1225 RD54
> 1 RX50 Diskette (UNFORMATABLE)
> 2 RX50 Diskette (UNFORMATABLE)
>
> MSCP Controller Model: 19
> Microcode Version: 1
>
> ZRQC SYS FTL ERR 00007 ON UNIT 00 TST 001 SUB 000 PC: 105742
> Controller has reported a fatal error in the FORMAT program.
> Status: FCT write error (check write protect switch)
>
> Drive 0 was not formatted successfully.
>
> ZRQC EOP 1
> 1 TOTAL ERRS
>
> Since this drive worked fine under VMS before I started the
> conversion, I am starting to think there is a jumper on either
> the RQDX3 or the RD54 that has to be changed to use the drive
> under RT-11, since the write protect switch is NOT enabled (I
> even toggled it to make sure).
> --
> Eric Dittman
> dittman_at_dittman.net
> Check out the DEC Enthusiasts Club at http://www.dittman.net/

Found this in an addendum i had stashed away: /Jumper W23 on
the RQDX3 must be on pins 1 and 2 when used with rd54s. If not
disk corruption can result/

-nick
Received on Sun Nov 04 2001 - 01:39:43 GMT

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