Date   : Tue, 03 Aug 2004 13:41:40 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: Acorn Winchester and dual hard drives?

On Tue, 2004-08-03 at 09:15, Mark Usher wrote:
> > b) Can the Acorn ADFS hard disk code handle talking to the 
> > Winchester board coupled to an Adaptec board with two drive 
> > (i.e. one SCSI target, two LUNs)? Or does it assume that 
> > there's only one drive connected?
> 
> Yes, in the immortal words of Mr Punch - "That's the way to do it".
> It must be two LUNS on one SCSI target ID. Two different SCSI Target ID's
> won't work without hacking the ADFS 

Okies :)

I've found a Rodime 46MB drive which seems to be working so far - it's
just formatted and verified; that's using the 'super winchester
formatter' from the ACW utilities floppy.

One thing I'm not certain of is that the sick drive with the data on is
a Rodime R203E (which seems to be an RO203E in all online references),
and is listed as being 256 bytes / sector. 

The Rodime 46MB drive is listed in online references as being 512 bytes
/ sector.

I'm not sure if that's going to cause a problem or not yet - I thought
for ST506 drives the sector boundaries were laid down at format time
anyway, so it's up to the formatter to decide how many bytes/sector
there should be (unlike SCSI/IDE where the drives aren't designed to be
low level formatted). I'm busily confusing myself at the moment...

The formatter seems to think all is well though and I have approx 46MB
of space, so who knows...

cheers

Jules