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Date: Sat, 26 Mar 2011 11:54:44 +0200
From: Kostik Belousov <kostikbel@gmail.com>
To: Jeremy Chadwick <freebsd@jdc.parodius.com>
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Cc: freebsd-fs@freebsd.org
Subject: Re: tying down adaX to physical interfaces
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On Fri, Mar 25, 2011 at 10:16:43PM -0700, Jeremy Chadwick wrote:
> Why would the disk number change on a drive swap?  This doesn't happen
> on my Intel ICH9R controller on *any* Supermicro X7xxx or Supermicro
> PDxxx board I have access to.
Because the order of enumeration of controllers depends on the
BIOS, and is not consistent among boots. Also, it changes if you
swap controllers or insert disks into the free bays in the backplane.

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