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Re: IDE-SCSI, CD-RW, ZIP drive weirdness



On Sun, Apr 14, 2002 at 08:14:54PM -0600, Troy Telford wrote:
> I have an ATAPI CD-RW installed as the second slave (/dev/hdd).
> 
> According to the documentation I've read, to use the CD-RW in Linux, I 
> have to use IDE-SCSI (kernel) and have 'hdd=scsi' in the boot parameters.
> 
> I've done this, and I have no problems using the drive, but I have 
> discovered somthing... odd.
> 
> I have an ATAPI ZIP-100 on /dev/hdb (first slave).  I am not telling the 
> kernel to use IDE-SCSI for it (boot parameters), yet IDE-SCSI takes 
> control of the ZIP-100.
> 
> And, the ZIP-100 works great under the IDE-SCSI driver.  (Since I run 
> DevFS, it's interesting to note that this gets rid of any problems I've 
> had and read about when using the ZIP-100 and DevFs).
> 
> My only beef is that I don't believe I configured Linux to do this 
> (although it was a pleasent surprise), and am wondering if this is a bug 
> of some kind to be reported.  (Or, if this is a little unknown 
> workaround for ZIP drives & DevFS).

I have this exact same 'issue' with almost the same hardware.  As far
as I can tell, when the ide-scsi module is loaded, it takes control of
all non-harddisk IDE devices on the system.  I think there's a work
around, but I can't for the life of me remember it.  If it doesn't
bother you, I'd just leave it.

Oh yeah, there were a couple of other things, (all good:):
* You can use tools like jazip (for your zip drive) that only
  understand SCSI.
* Apparently some cd-rom drives can perform DAE (digital audio
  extraction, ie rip) cds quicker with ide-scsi enabled!

-rob

-- 
I did not vote for the Australian government.

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