Re: Quantum Fireball with Ramfast

[toh@freenet.Victoria.BC.CA (Marc Sira)]

In our last episode, dempson@atlantis.actrix.gen.nz (David Empson) said:

>"Reselection" is a feature of both SCSI-1 and SCSI-2.  It is not
>supported by the RamFast, since the RamFast doesn't support the
>arbitration phase, and has no SCSI ID of its own.
>
>The Apple High-Speed SCSI card definitely supports this, and the
>original Apple SCSI card should do so.
>
>If reselection is enabled, the drive will disconnect from the host
>while a command is being actioned.  When the command is complete (e.g.
>a READ command is ready to transfer data) the drive will "reselect"
>the host (i.e. wait for the bus to be free and try to connect to the
>host, which involves sending the SCSI ID of the host) and transfer the
>data.

Interesting. Is it possible, then, to convince the drive not to do this?

If not, it sounds as if these drives may not be usable with the RF even
with a future ROM version. Is this correct?

-- 
Marc Sira			   |
{ub675,toh}@freenet.victoria.bc.ca | "Your god drinks...p-p-peach nectar!"
{aa,xx}382@freenet.carleton.ca	   '