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    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
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