Re: Can IDE HDD coexist with SCSI HDD?

From: Tony Lawrence (foo_at_pcunix.com)
Date: 06/15/05 

Date: Wed, 15 Jun 2005 15:46:29 -0400

Barry O. Andalman wrote:
> My customer's SCSI hard drive just failed. I replaced it with another
> SCSI drive but also decided to add an inexpensive IDE hard drive that I
> was planning to use to make a nightly 'tar' backup onto. I ran "mkdev
> hd" and then chose the "add an IDE drive" option, at which point UNIX
> (Open Server 5.0.5) requested a kernel reconfigure. Upon reboot, the
> O.S. would fault at the point in the hardware configuration listing
> right after it detected the IDE hard drive (but notably before the SCSI
> devices were listed) and shut down prematurely. I should have written
> the actual error down, but didn't.
>
> Is this an unsupported configuration or am I doing something wrong?
>
> Thanks for your indulgence!

 From http://aplawrence.com/SCOFAQ/FAQ_scotec2mixide.html

Can I have both IDE and SCSI Drives?

Mixing SCSI and IDE drives can be a problem if you want the root disk to
be scsi. The short answer is that you can if your BIOS lets you select
which drive to boot (if not, you would have to boot from a floppy).
Assuming everything else is in place, "defbootstr hd=Sdsk" should work.
See SCSI (http://aplawrence.com/Unixart/scsi.html ) for a full
discussion of this. 

-- 
Tony Lawrence
Unix/Linux/Mac OS X  resources: http://aplawrence.com

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