RFC: Suggesting ZFS "best practices" in FreeBSD - mapping logical to physical drives

[Peter Jeremy]

On 2013-Jan-22 18:06:27 -0800, Michael DeMan <freebsd at deman.com> wrote:
># OAIMFD 2011.04.13 adding this to force ordering on adaX disks 
># dev.mvs.0.%desc: Marvell 88SX6081 SATA controller 
># dev.mvs.1.%desc: Marvell 88SX6081 SATA controller 
>
>hint.scbus.0.at="mvsch0"
>hint.ada.0.at="scbus0" 
...

That only works until a BIOS or OS change alters the probe order and
reverses the controller numbers.

The correct solution to the problem is gpart labels - which rely on
on-disk metadata and so don't care about changes in the path to the
disk.

-- 
Peter Jeremy
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