So to save everyone else the hour and a half I spent figuring out how to fix this, here's what you need to do:
# lvconvert --mirrors -1 <lv device> <pv_device> # vgchange -ay # lvconvert -m 1 <lv_device> Where lv_device is the device that's having issues, and <pv_device> is the SECONDARY device on the RAID1 mierror. This will throw a warning, but will remove the secondary device. vgchange should then be able to bring up the (now un-mirrored) volumes. After vgchange, run lvconvert again to add the mirror back. This requires a resync. The above has to be done after every reboot.
