johnl@esegue.segue.boston.ma.us (John R. Levine) (09/19/90)
I have a 386 box with an Adaptec 1542B controlling a 660MB Micropolis disk.
Works great. I'm trying to add an Archive 2150S SCSI tape drive with no
success. The tape's in the middle of the cable with no terminator, and has
its ID set to 5. I can't get ISC Unix, which is reported to work perfectly
well with this drive and controller, to admit that the tape is there.
The problem seems to be that the disk is responding to all 8 SCSI addresses.
When I run the diagnostic in the adapter BIOS, it reports that there is a
disk at every SCSI address. The disk has jillions of jumpers on it, but of
course arrived in a documentation-free condition. While I attempt to
explain to my dealer what the problem is and to get them to find a manual
for the disk, does this problem sound familiar?
--
John R. Levine, Segue Software, POB 349, Cambridge MA 02238, +1 617 864 9650
johnl@esegue.segue.boston.ma.us, {ima|spdcc|world}!esegue!johnl
Atlantic City gamblers lose $8200 per minute. -NY Timeskaufman@Neon.Stanford.EDU (Marc T. Kaufman) (09/19/90)
In article <1990Sep19.042306.261@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >The problem seems to be that the disk is responding to all 8 SCSI addresses. >When I run the diagnostic in the adapter BIOS, it reports that there is a >disk at every SCSI address. When this happens, it usually means the disk is set to the same SCSI ID as the HOST. As every selection has the host's ID bit set, in addition to whatever target ID is desired, the unit will respond to all selection requests. Sorry, I can't help with the jumpers. Marc Kaufman (kaufman@Neon.stanford.edu)
larry@nstar.uucp (Larry Snyder) (09/20/90)
johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >I have a 386 box with an Adaptec 1542B controlling a 660MB Micropolis disk. >Works great. I'm trying to add an Archive 2150S SCSI tape drive with no >success. The tape's in the middle of the cable with no terminator, and has >its ID set to 5. I can't get ISC Unix, which is reported to work perfectly >well with this drive and controller, to admit that the tape is there. I have my 2150 set at an ID of 4 - which works fine - after creating the tape file in /etc/conf/node.d - -- Larry Snyder, Northern Star Communications, Notre Dame, IN USA {larry@nstar, uunet!sco!romed!nstar!larry, nstar!larry@ndmath.math.nd.edu} usenet newsfeeds available Public Access Unix Site (219) 289-0282 (5 high speed lines)
gary@ke4zv.UUCP (Gary Coffman) (09/20/90)
In article <1990Sep19.042306.261@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >I have a 386 box with an Adaptec 1542B controlling a 660MB Micropolis disk. >Works great. I'm trying to add an Archive 2150S SCSI tape drive with no >success. The tape's in the middle of the cable with no terminator, and has >its ID set to 5. I can't get ISC Unix, which is reported to work perfectly >well with this drive and controller, to admit that the tape is there. > >The problem seems to be that the disk is responding to all 8 SCSI addresses. >When I run the diagnostic in the adapter BIOS, it reports that there is a >disk at every SCSI address. The disk has jillions of jumpers on it, but of >course arrived in a documentation-free condition. While I attempt to >explain to my dealer what the problem is and to get them to find a manual >for the disk, does this problem sound familiar? I've fought a documentation free Micropolis 1578 for some time now. There is what appears to be a connector on the rear of the drive to the left of the SCSI connector. This is actually the drive select header. Supposedly with no jumpers in place, the drive responds as target 0. With the leftmost pin pair jumpered, it responds as target 1 etc. I haven't figured out any of the other jumpers on the drive but this sort of got it working. I still don't know how to jumper it for sync negotiation or any other performance enhancing tricks. If anyone has good documentation on the proper jumper settings on this drive, I would appreciate Email. Gary
karl@naitc.naitc.com (Karl Denninger) (09/20/90)
In article <1990Sep19.042306.261@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >I have a 386 box with an Adaptec 1542B controlling a 660MB Micropolis disk. >Works great. I'm trying to add an Archive 2150S SCSI tape drive with no >success. The tape's in the middle of the cable with no terminator, and has >its ID set to 5. I can't get ISC Unix, which is reported to work perfectly >well with this drive and controller, to admit that the tape is there. > >The problem seems to be that the disk is responding to all 8 SCSI addresses. >When I run the diagnostic in the adapter BIOS, it reports that there is a >disk at every SCSI address. The disk has jillions of jumpers on it, but of >course arrived in a documentation-free condition. While I attempt to >explain to my dealer what the problem is and to get them to find a manual >for the disk, does this problem sound familiar? Yeah, a number of disks are crass enough to do this. Make sure that the disk isn't selected as Unit 7. Some disk drives like to show up on all 8 bus addresses if you set it for 7, presumably because that makes single-drive installation easier (you don't have to change any jumpers). I bet your drive is in this condition. If so, removing one or more of the drive select jumpers (probably ALL of them) will get you Unit 0, and the problem will go away. Note that if you want to boot from the drive it should be at Unit 0, and further that the tape drive must be at a higher SCSI address than any of the disks in the system. I usually use Unit Select 4, since ISC's standard driver supports 4 SCSI drives (and thus unit 4 is safe no matter how many drives are actually installed). -- Karl Denninger AC Nielsen kdenning@ksun.naitc.com (708) 317-3285 Disclaimer: Contents represent opinions of the author; I do not speak for AC Nielsen on Usenet.
helmut@knirsh.UUCP (Helmut Knirsch) (09/20/90)
In article <1990Sep19.042306.261@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >The problem seems to be that the disk is responding to all 8 SCSI addresses. Some weeks ago we had the same problem. After a little bit trouble-shooting we found the disk drive delivered with ID 7. After jumpering ID 0 the problems vanished. For Micropolis 1684-7, 1684-6, 1683-5, 1683-4, 1375, 1374, 1374A, 1373, 1373A and 1580 Series the device SCSI ID can be assigned via three jumpers on Jumper Block 2. This block is located on the rear of the drive next to the SCSI Bus Connector J1. Normally Pin 1 and Pin 24 of J2 are marked on the interface board. +-------+ J2: | 24 23 | | ..... | | ..... | | 6 5 | ID Bit 2 | 4 3 | ID Bit 1 | 2 1 | ID Bit 0 +-------+ +-------+ J1: | 50 49 | ..... Remove all Jumpers from ID Bit 0, 1 and 2 to configure SCSI Address 0. Insert Jumpers 1-2, 3-4 and 5-6 to select SCSI ID 7. Helmut
lawson@iphase.UUCP (David Lawson PER ) (09/24/90)
In article <1990Sep19.042306.261@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: > >The problem seems to be that the disk is responding to all 8 SCSI addresses. The board and the drive are at the same SCSI ID. If you have no documentation on the drive, change the board's ID until you get some.
julian@bongo.UUCP (Julian Macassey) (09/25/90)
In article <1339@ke4zv.UUCP>, gary@ke4zv.UUCP (Gary Coffman) writes: > Stuff deleted > I've fought a documentation free Micropolis 1578 for some time now. There > it working. I still don't know how to jumper it for sync negotiation > or any other performance enhancing tricks. If anyone has good > documentation on the proper jumper settings on this drive, I would > appreciate Email. > I have the documentation for this drive. For an SASE and $1.00 I will send a Xerox of the docs (2 pages). If I loafed in a large corporation there would be no charge for the Xeroxing. By the way, I have found Micropolis most helpful in the past. Why oh Why do these corporations inist on missing or lousy docs. Don't they understand it hurts their bottom line? What would the pres of Micropolis do if he bought a TV that had no docs on how to change channels and no clear markings on the cabinet as to how to do it? Wangtek supply no docs either, but are happy as clams to FAX you 4 pages from their service manual. Wouldn't it be cheaper to have PIP print 4 pages and wrap the damn tape drive in them? Anyhow for those who want the Micropolis docs, send SASE etc to: Julian Macassey Micropolis docs 742 1/2 North Hayworth Avenue Hollywood California 90046-7142 Those in a tearing hurry could try phoning me to read the docs, but I may be out. -- Julian Macassey, n6are julian@bongo.info.com ucla-an!denwa!bongo!julian N6ARE@K6IYK (Packet Radio) n6are.ampr.org [44.16.0.81] voice (213) 653-4495