| From: | Kevin Twyman |
| Date: | 3 Jul 2001 at 14:13:10 |
| Subject: | Re: Arright, what's going on here? [SCSI update] |
Hello Sean,
On 03-Jul-01, you wrote:
> Problem: allegedly the Cyberstorm SCSIs don't have termination.
The Phase 5 CyberStormPPC SCSI doen't have termination on the
controller - I have one, and it is clearly stated in the manual. I
don't know if the DCE boards are different.
> What happened was I configured the hard drive so that it was unit 1.
This could be the problem - SCSI 3 devices should be above unit 8.
I assume that all units are activated in the CS early startup screen?
I have an UW SCSI3 HD at unit 10, set to provide termination power,
and the unit itself is terminated.
The HD is at one end of the 68-way cable, next is the controller, then
two SCSI 2 devices (CD-ROM and CD-RW)on 68>50 adapters, set to
units 3 and 5. The cable is then terminated with an active 68 pin
terminator.
> PFS3's HDInstTools recognized the following three items on
> cybppc.device: 17.9 gig hard drive on unit 1, Yamaha CD writer on
> unit 3, and Zip drive on unit 6. Perfect!
Wrong! That HD, if SCSI3 68 pin, should be on one of the upper 7 unit
numbers.
> Connected directly to the external SCSI port via a SCSI-3-to-DB25
> converter is my external Zip 100 drive, unterminated, set to unit 6.
> Daisy-chained to my Zip drive is my external Yamaha CRW4416SXZ. The
> cable between the Zip and the Yamaha is DB25 on one end, MD50 on the
This sounds like a "T" setup? If so you're going to have all sorts of
problems :(
> So...what should I do?
You want one cable, terminated either end, with the controller and all
devices in the middle. The Hard Drive should go at one end of the
cable as one terminator, and should be set to provide TERMPWR.
If you want to run external devices, then you need a 68>50 adaptor ON
THE END OF THE 68 WAY CABLE, and this should provide upper byte
termination - the chain then continues as normal, with the last device
terminated.
The HD should be set to eg unit 10, and the ohter SCSI2 unit nos. left as
you have them.
Regards,
Kevin - Est. 1949 http://www.theboyz.freeserve.co.uk
A man with an Amiga A4000T CyberStormPPC 604e/233
Never mind the Prime Directive...... let's WASTE the sucker!!
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