SUMMARY: SCSI-ID on WREN-IV

From: poul@nilu.no
Date: Fri Nov 06 1992 - 10:51:49 CST


Last night (local time) I wrote:

> I HAVE A SCSI-DISK I NEED TO CHANGE THE SCSI-ID IN A HURRY
> SEAGATE
> WREN-IV-376 cyl 1451 alt 2 hd 9 sec 48

Thanks to the list, but you didn't beat the Sun representative
here in Norway (Skrivervik data) who came with the solution
after *ONLY* 7 hours!! (shame on you sun-adms ;-)

Thanks to

 Mance Wilkerson <mance@Synopsys.COM>
 shankar@ulysses.att.com
 "arossite" <arossite@us.oracle.com>
 ralph@swmerc.rain.com (Ralph Merwin)
 Tom Conroy <trc@NSD.3Com.COM>
 Brent Alan Wiese <brent@crick.ssctr.bcm.tmc.edu>
 etnibsd!vsh@uunet.UU.NET (Steve Harris)
 guyj@apollo.techpac.oz.au (Guy Jones)
 mondics@tartan.com (Brian R. Mondics)
 and all who I might have forgotten

for many nice drawings and info

But MOST THANKS to Frank Tenambergen, Skrivervik Data A/S, who was
first out and sent me this nice drawing:
                                                     PWR
   +-------------------------+ +----------+ /---------......
   | * * * * * | | * * | /
   | | | | | @ @ ......
   | * * * * * | | * * | |
   +-------------------------+ +----------+ +---------.......
------------------------------------------------------------------..
      ^ ^ 4 2 1 Ground
      | | Drive Select Select
      | |
      | |
      | +----- Motor start option
      |
      +-------- Parity check option

                      S
                      C
      4 2 1 S I
   +---------------+ I D
   | * * * |
   | * * * | 0 # = Jumper
   +---------------+
   +---------------+
   | * * # |
   | * * # | 1
   +---------------+
   +---------------+
   | * # * |
   | * # * | 2
   +---------------+
   +---------------+
   | * # # |
   | * # # | 3
   +---------------+
   +---------------+
   | # * * |
   | # * * | 4
   +---------------+
   +---------------+
   | # * # |
   | # * # | 5
   +---------------+
   +---------------+
   | # # * |
   | # # * | 6
   +---------------+
   +---------------+
   | # # # |
   | # # # | 7
   +---------------+

        JUMPER SETTING FOR WREN IV MODEL 94171

Also a short one (from Bruce Rossiter):

        Here's a diagram from the manual for the Wren IV:
                                                
                                                    : : : : : : : [+ + + +]
                ============================================================
                  ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
                  | | | | | | | | | |
                  | | | | | | | | | |
                board 5 4 3 2 1 GND POWER
                                                               SLT

        Pinsets 1,2,3 are the SCSI ID select. Pinset 1 is 1, pinset 3 is 4.
        So, having pinset 1-3 open is SCSI ID 0. Jumpering pinset 2 will give
        you SCSI ID 2, jumpering pinset 1 and pinset 2 will give you SCSI ID 3.

        Pinset 4 is "Motor Start Option", Pinset 5 is "Parity Check Option"

        The 2 pinsets beside the power receptical are the "Ground Select
        Jumpers".

        Hope this is helpful! You should also insist that your disk vendor provide
        the technical manual with all disks you purchase, and keep them in a safe
        place. That way, you have the info you need on hand. I find it very useful.

And Tom Conroy:

        Make liberal use of 'probe-scsi'.

        Power off drive and CPU before changing. Drive will not re-initialize
        SCSI address. CPU has a nasty little fuse on the SCSI bus ...

        PS: Next time, please don't shout. It's a little hard on my
        eyes this early in the morning ... :^)

Steve Harris came up with a phone number, which you might find usefull:

        Try the Seagate dial-up help line:

        408-438-8771 Seagate dial-up help line

                                 hilsen/regards

                                     Poul.

---
#define E_MAIL  Poul.Sorensen@nilu.no
#define CC      +-1     /* the computer constant - very usefull when writing loops. */



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