[lkml]   [2002]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: IDE and hot-swap disk caddies
On Wed, Mar 27, 2002 at 11:29:00PM +0100, Pavel Machek wrote:
> Hi!
> > > > You can paint a goose yellow and call it a duck, but it is still a goose.
> > > > The electrical/electronic interface will kill you!
> > >
> > > USB mass storage is not SCSI (in some cases), either. [Ouch, and some
> > > usb-storage devices *are* IDE.]
> > >
> > > So it makes sense to view IDE as very odd SCSI controllers.
> >
> > IDE is very different. Its like calling NFS Netware. The upper layer
> > behaviour is fairly similar, and both ATAPI and USB mass storage is SCSI
> > alike (note if its not SCSI like its not USB mass storage its something else
> > eg a vendor specific driver).
> I have seen USB mass storage devices with ide connector on them, so it
> is certainly possible to translate between scsi and ide. If it makes
> sense from performance standpoint.... I don't know.

That's between SCSI and ATAPI, which are mostly the same on command
level. ATA (IDE), which is used for harddrives is older, and different.

Vojtech Pavlik
SuSE Labs
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:25    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean