kern/120231: [geom] GEOM_CONCAT error adding second drive

[pjd at FreeBSD.org]

Synopsis: [geom] GEOM_CONCAT error adding second drive

State-Changed-From-To: open->closed
State-Changed-By: pjd
State-Changed-When: wto 11 sie 2009 13:51:58 UTC
State-Changed-Why: 
As lulf suggested, gconcat has no way to tell if it should use ad5s1d
or ad5s1 if they present exactly the same data. Gconcat report duplicate,
but should still work perfectly fine. Either use -h option or ignore
duplicate report.

http://www.freebsd.org/cgi/query-pr.cgi?pr=120231