Strange things with my hard drive

Gregory Nowak gnowak1 at
Sun Feb 24 23:12:45 EST 2002

Is this true only for cd-roms, or is it also true for other ide devices? What I mean is for example if I have a hard drive as primary master, and zip drive as primary slave, am I going to experience this slow down too when copying from one to the other, or not?

On Mon, Feb 25, 2002 at 11:04:33AM +0800, Kerry Hoath wrote:
> This is not a good idea unless ide channels are limited.
> The reason for this is that once one device is accessing the ide bus the other
> device doesn't get a look in until the first device has finished.
> The practical upshot of this is that installs from cdromt o hard disk go really slowly because
> both devices want contention on the ide bus.
> With the multitude of IDE devices these days it can be difficult to get the combinations right.
> Slaving a cdrom to a burner is ok provided you don't want to do on-the-fly
> copying with your cdrom to burner.
> Slaving a burner to a hard drive can also cause problems if your i/o subsystem is not up to 
> keeping both devices busy.
> If you have a cdrom only put it master on the secondary controller if you don't have 2 hard drives or put it as
> slave on the secondary if you have a hard drive on both controllers.
> If you have a cdorm and a burner I cable like this:
> primary master, hard drive.
> Primary slave, empty
> Secondary master, cd burner, secondary slave, cdrom.
> I don't on-the-fly copy from cd to burner, I let the computer
> put it on the hard drive as an intermediate step.
> Regards, Kerry.
> On Sun, Feb 24, 2002 at 08:02:31PM -0500, Alex Snow wrote:
> > I've never bilt a computer, but i've taken about 100 apart.  In most cases,
> > and most of the machines I gutted were older ones, the cdrom is slaved to
> > the hard drive witch is the master.
> > 
> > 
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> -- 
> Kerry Hoath:  kerry at kerry at or  kerry at
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