🚀 go-pugleaf

In article <2p5dd7$ais@erinews.ericsson.se> etlinbe@etlxd20.ericsson.se writes:
>I cant remember who off hand, but it was on eof the major Hard Drive
>manufactures that used to make a ESDI -> SCSI interface. Its not
>manufactured anymore, but maybe you can advertise for a 2nd hand one.
>The small card allowed to to plug in 2 ESDI drives, which it would then
>fool the SCSI bus into thinking were two partitions on a 'single'
>physical device.
>
>As far as I'm aware, its just plug in and go. 

The ESDI-to-SCSI adapter I have is the MD21 Drive Controller by Emulex.  It
was used in Sun Microsystems Sun-3 "Shoeboxes".  Another one also used by
Sun was made by Adaptec, but I don't know the model number.

I don't think the MD21 isn't just plug-'n-go, though.  It needs to be
programmed with the drive specifications via a SCSI Mode Select command.
Also, while MD21 allows up to two drives to be attached, the drives are
kept separate and appear at two different SCSI LUN's (Local Unit Number's)
under the MD21's SCSI address.

Currently I'm trying to connect a 380Mb ESDI drive to my MD21, but I think
the drive is incompatible.  The drive apparantly uses a higher bandwidth
ESDI interface than the controller can handle.

-------------------------------------------------------------------------------
The crew faces deadly GURUs!  Next time on AmigaDOS: The Next Generation.
	+--------+			John Lee
	| HUGHES |
	+--------+			ARPAnet: jhlee@hac2arpa.hac.com	
The above opinions are those of the user and not of those of this machine.