brian@grebyn.com (Brian Bishop) (05/16/91)
I recently purchased a Quantum 105 Meg drive without any documentation. If
someone could inform me as to the settings for the two jumper banks, I'd
appreciate it. I am mainly interested in altering the scsi lun # (drive
number). Thanks!!!!
Brian Bishop
--
---
Brian Bishop, Software Engineer, Zyga Corporationjsanchez@polari.UUCP (jim sanchez) (05/18/91)
All the Quantum Drives I have used have three jumpers labeled A0,A1,A2 in tiny letters. These set the SCSI address a jumper installed sets that address bit to a "1" eg, no jumpers is ID 0. Jim Sanchez
tessier@bmerh185.BNR.CA (Daniel Tessier) (05/21/91)
In article <1991May16.041346.9356@grebyn.com>, brian@grebyn.com (Brian Bishop) writes: |> |> I recently purchased a Quantum 105 Meg drive without any documentation. If |> someone could inform me as to the settings for the two jumper banks, I'd |> appreciate it. I am mainly interested in altering the scsi lun # (drive |> number). Thanks!!!! I just installed a LPS105S this weekend together with a HardFrame 2000. I didn't get any documentation with the drive, but in the HF docs, they mention that the A0, A1 and A2 jumpers control the unit number. The default configuration should have A1 and A2 set (unit 6). I removed those to set it to unit 0. /----------------------------------------------------------------\ | Dan Tessier PHONE : (613)765-2380 | | Bell-Northern Research, Ltd. INTERNET: tessier@bnr.ca | | Ottawa, Ontario, Canada UUCP : ...uunet!bnrgate.bnr.ca | | !bmerh185!tessier | | "Mothers are the necessity of invention" | | - Calvin & Hobbes | \----------------------------------------------------------------/
cac5961@rouge.usl.edu (Castor Christian A) (05/23/91)
It seems that from time to time this same question pops up. I'm
posting the EMAIL response I got when I asked the same question:
---------Email begins --------------------------------------------
From: lemsys!clemon@rex.cs.tulane.edu (Craig Lemon) (Craig Lemon)
To: cac5961@usl.edu
Subject: Re: Quantum hdrive jumpers
Status: R
cac5961@usl.edu wrote:
c>Hello, net.amiga.land. I just bought a Quantum Prodrive 105S via
c>mail order, and unfortunately they didn't send a manual with it.
c>Before installing it, I would like to know what is the purpose of
c>the jumpers on the drive's motherboard (the ones next to the SCSI
c>interface). There are a total of six jumpers grouped into two
c>clusters. The labels in the jumpers read: SS,EP,WS,A2,A1,A0.
c>Any information will be greatly appreciated.
c> Since the information doesn't seem to be of net.importance,
c>a favor of EMail response is requested. Thanx.
c>
c> - Chris
c>
c>-------------------------------------------------------------------------
c>Christian Castor - cac5961@usl.edu or chris@usl.edu - CIS: 73030,2734
c>Plink: ChrisC - (318)232-2045 - Snail: PO Box 43402,Lafayette LA 70504
c>-------------------------------------------------------------------------
I finally received the full technical manual to this drive last
month. It's an 8.5x11" book that almost an inch thick(!). Here goes :
SS : Self Seek Test Operation
Self seek tests continuously exercise the drive's actuator. The
test performed depends on the SCSI device identity selected with pins A0,
A1, A2.
o If the SCSI ID is set to 6 (factory default), the drive will
perform random seek patterns, verifying target IDs after every seek. The
pattern will repeat as long as power is applied to the drive or until an
error has occured
o If the SCSI ID is set at any value other than 6, the drive will
perform a butterfly seek pattern beginning with a single track seek at the
middle cylinders and extending out to a full stroke seek. The pattern will
continue as long as power is applied to the drive. The ProDrive is sent
from the factory with no SS jumper installed.
EP : Enable Parity Option
The jumper pins labelled EP control the checking of parity across
the SCSI bus. When a jumper is installed on this pair of jumper pins,
parity cheecking of data across the SCSI bus is enabled. With no jumper
installed, parity checking is not performed, although parity is still
generated. The Prodrive is sent with this jumper installed
WS : Wait Spin Option
The WS jumper pin pair controls the Wait/Spin option. When a
jumper is installed on these pins, the motor will not spin upon power-up
or reset until the host sends the START/STOP command across the SCSI bus.
This permits power sequencing so that the system power supply will not be
overloaded by many devices demanding peak start current at the same time.
Once the START/STOP command is received, the drive will be ready within 15
seconds. When no jumper is installed on the WS jumper pins, the motor
will automatically start spinning upon power-up or reset and will be ready
within 15 seconds. The ProDrive is sent from the factory with no WS
jumper installed.
A0, A1, A2 : SCSI Buss Device Identification
The SCSI bus can support up to eight devices including the host
system. The identity number determines the priority level of each device,
so careful consideration must be taken in choosing the identity number of
the ProDrive prior to installation
Three pairs of jumper pins (A2, A1 and A0) are used for device
identification. These pins comprise a 3-bit binary number in which A2 is
the most significant bit and A0 is the least significant. Installation
represents a 1, meaning that with jumpers installed on all jumper pin
pairs, the device identity is 7. With no jumpers installed, the device
identity is 0. The ProDrive is sentfrom the factory with jumpers
installed on pins A2 and A1 (device 6)
[Note : You should set this number as low as possible for a quick startup.
Make sure that your controller can handle the speed first though.]
Well, that's about it, word for word from the manual minus
references to diagrams and plus [] comments and, most likely, a few typos.
--
Craig Lemon - Kitchener, Ontario. Amiga B2000/10--2400 bps--AmigaUUCP 1.03D
clemon@lemsys.UUCP or lemsys!clemon@xenitec.on.ca |
lsuc!xenitec!lemsys!clemon@cs.toronto.edu | Choose your path.
....!{uunet}!watmath!xenitec!lemsys!clemon |
----------------Email ends-----------------------------------------------
I hope it helps.
- chris
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Christian Castor - cac5961@usl.edu or chris@usl.edu - CIS: 73030,2734
Plink: ChrisC - (318)232-2045 - Snail: PO Box 43402,Lafayette LA 70504
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-