hardware mirrors recognized as individual disks in fbsd

Steve Franks stevefranks at ieee.org
Tue Jan 16 18:33:51 UTC 2007

I'm tired of win2k crashing, and we won't even go into my opinion of vista's
strongarm marketing tactics (read: changing my hardware means I have to pay
again? they can keep their OS).

Problem is, I've got 320GB of accumulated detrius on ntfs volumes to
migrate.  I see there is some good r/w ports for ntfs, so I'm willing to
evaluate that to see if it's stable (shoestring budget here obviously - this
is my personal stuff only).

Forging ahead, I get ready to start playing the mounting game, but
lo-and-behold, suddenly I have 4 disks whereas in windows I had two.  Now I
praise FreeBSD for it's superior intellect here, but now I have a problem.
I want two 160GB mirrored volumes, not 4 unmirrored ones.  The RAID is an
ASUS P5DR1-VM motherboard with a ULI raid chipset onboard.  Very nice setup
for the money.

Is this normal?  Am I going to break my mirror if I mount a single disk?  If
so, how do I mount a mirror?


Steve Franks, KE7BTE
Staff Engineer
La Palma Devices, LLC
(520) 312-0089

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