| From: | Mark.Smith |
| Date: | 27 Jun 2001 at 15:34:01 |
| Subject: | Re: SCSI hard drives.........BLAAAAAAAAAAAAAAAAACHHHHHHH!! |
--- In amigactive@y..., Sean Courtney <dauber@w...> wrote:
> --- Mark.Smith@s... wrote:
>
> > In the boot menu of the Cyberstorm force the drive into
synchronous
> > mode of 10Mhz or less ... I know what you are thinking "But it'll
run
> >
> > horrible slow!" ... don't worry.
>
> Well, I can't even GET the boot menu, or ANY menu at all, including
the
> early startup menu, unless I disconnect the drive.
>
>
> > Why do you need to do this ... not 100% sure but there seems to
be an
> >
> > incompatibility with the new Ultra2/Ultra160/320 drives and the
> > Cyberstorm, luckily this should be fixable with a new
firmware ...
>
> Yes, but it's doing the exact same thing on an older drive that I
KNOW
> is not an Ultra2, Ultra 160 or Ultra 320...an old IBM SCSI-2 hard
> drive...
>
Doh! stupid me didn't read you e-mail properly and jumped to
conclusions (sorry Ralph :-).
Sort your bloody termination out! The SCSI chain should look like
this :
(make sure you use good quality 68way SCSI cables - teflon or twisted
pair will be good and get ACTIVE SINGLE ENDED terminators, not
differential or LVD ... though most LVD will do SE as well)
Active 68way terminator
|
Cyberstorm (ID 7)
|
SCSI DISK (68way) (ID 0) - NOT TERMINATED & Forced Single Ended mode
|
Zip drive (using a 68->50pin converter) (ID 6) - NOT terminated
|
CD Writer (on a 50->68pin converter) (ID 3) - NOT terminated
|
Active 68way terminator
Just make absolutly sure that no SCSI ID's are clashing and have
either SCSI hard disk or the CD-Writer provide termination power
(TERM PWR) as the Cyberstorm does not provide this (you want to
provide TERM PWR to the bus not to the drive or from the bus)
Regards
Mark Smith
StorageNetworks
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