journal and software raid using gmirror and gjournal

[Joey Mingrone]

Hi,

I'm attempting to setup a storage server with mirroring and journalled
filesystems using 1TB drives.  Initially I did the following:

sysctl kern.geom.debugflags=17
dd if=/dev/zero of=/dev/ad8 bs=1k count=1
dd if=/dev/zero of=/dev/ad10 bs=1k count=1
gmirror label -vb round-robin gm0 /dev/ad8
gmirror load
gjournal label /dev/mirror/gm0
gjournal load
newfs -O 2 -J /dev/mirror/gm0.journal
mount /dev/mirror/gm0.journal /mnt/mirror2
gmirror insert gm0 /dev/ad10

,but read in the archives there are potential issues with the
labeling.  Does anyone have any suggestions (or references to
documentation) describing how this could be done?

Are the GEOM parts for doing this sufficiently mature to consider this
safe?  This did seem to be working, but when I did a dump I got kernel
panics like others who have posted recently.

Thanks,

J. Mingrone