Re: HELP:Trouble With //GS SCSI Card

[dempson@actrix.gen.nz (David Empson)]

Supertimer <supertimer@aol.com> wrote:

> CUTblakeney@home.com (Jeff Blakeney) wrote:
> 
> >supertimer@aol.com (Supertimer) wrote:
> >
> >>So set the Apple High Speed SCSI card's ID to 2 and
> >>set your hard drive ID to (for example) 6 and see what
> >>happens.
> >
> >Personally I agree with David that you should set the SCSI cards ID to
> >7 at all times so that it has the highest priority on the SCSI bus.
> 
> Ok, then please explain to me what RamFAST users do?
> The RamFAST has NO SCSI ID of its own!

Can you please explain your question?  The RamFast has no SCSI ID of its
own, so how is it useful to speculate on how the RamFast's SCSI ID
should be set?

The RamFast doesn't fully implement the SCSI standard - it omits the
"arbitration" phase, which means that it can cheat and avoid having its
own SCSI ID.  This lets you connect eight devices instead of seven.

Unfortunately the lack of the arbitration phase makes it incompatible
with some devices (including many hard drives made in the last few
years).

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand