[SLL] The Best of Both Worlds issue with DMRAID

[Jesse Keating]

On Thu, 2008-03-06 at 13:27 -0500, Brett Serkez wrote:
> Right, I wasn't clear in my original posting.  Seems to me that dmraid
> presents what looks like a single device, so if this is being handled
> in Windows, then when booted under qemu, perhaps Linux just references
> /dev/hda and lets Windows deal with the RAID.  Not sure if this is
> possible or too simplistic.
> 
> I'm thinking this configuration will not work.

Right, the bios marks that "this is fake raid" and the Windows driver
for the raid device perks up and combines the two drives into one.  On a
Linux system that is necessary too, the bios has to say "This is fake
raid" and the dmraid driver set has to combine it into a raid.

Since qemu can't do that, you don't get to see them as raid.  Sucky, but
well, it's fake raid.

-- 
Jesse Keating RHCE      (jkeating.livejournal.com)
Fedora Project          (fedoraproject.org/wiki/JesseKeating)
GPG Public Key          (geek.j2solutions.net/jkeating.j2solutions.pub)
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