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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Twin on July 17, 2004, 01:47:02 PM

Title: Is my HD SCSI or IDE?
Post by: Twin on July 17, 2004, 01:47:02 PM

I have an A1200/030 (MTEC 030@28) with a 80MB hard drive. I stuffed my HD recently and was going to reformat it. I was playing with stuff on my HD and saw a tool called SCSI_Inquire, using this tool it says my devices is using scsi.device and has Vendor ID ST9100A.

I opened up my Amiga and it looks like a 2.5" IDE HD to me and I can't see any SCSI connectors on my accelerator card.

So if my HD is IDE why is it using scsi.device? Or is that the normal device used for HDs?

I wouldnt mind normally but Ive got a 4Gig SCSI HD here Id love to use if I could :)

Title: Re: Is my HD SCSI or IDE?
Post by: lorddef on July 17, 2004, 01:57:28 PM

scsi.device is the nice anc=d confusing name of the device driver for the amigas built in IDE.

I've heard tales the the amiga was once coing to have scsi but the used IDE instead to save on costs, who knows, welcome the the pear world of amiga.

Title: Re: Is my HD SCSI or IDE?
Post by: Thomas on July 17, 2004, 01:57:44 PM

The IDE driver is called scsi.device for compatibility. The hardware is IDE of course.

Bye,
Thomas

Title: Re: Is my HD SCSI or IDE?
Post by: pjhutch on July 17, 2004, 03:50:20 PM

A1200 comes with a IDE interface not scsi. Its called the scsi.device due to backward compatibility with older AmigaOS and software that looks for scsi.device. It really ought to be harddisk.device, but if you add a cdrom, it isn`t then. You could have a scsi.device and a ide.device but then you are duplicating effort, so they stuck with one name.

Title: Re: Is my HD SCSI or IDE?
Post by: Karlos on July 17, 2004, 03:54:13 PM

I'd have called the top level "storage.device" myself :-D

As already said, scsi.device within the existing A600/A1200/A4000 is so called just for compatability with older systems. The physical interface in these machines is plain old IDE.

Title: Re: Is my HD SCSI or IDE?
Post by: Jope on July 17, 2004, 04:00:09 PM

Quote

lorddef wrote:
I've heard tales the the amiga was once coing to have scsi but the used IDE instead to save on costs, who knows, welcome the the pear world of amiga.

Before the A4000, Commodore shipped only SCSI solutions (or well, the A590 shipped with an XT-IDE mechanism, but also had SCSI)

Guess what the device name for all the RDB capable Commodore SCSI controllers was?

Most likely they called the ide device scsi.device too so they didn't have to kludge hdtoolbox.. HDTB searches for scsi.device per default -> call the ide driver that too and you can ship the same install disks for the entire range.

(The A2090 wasn't scsi.device, but it's very different to other Amiga hd controllers)