diff -aur /var/abs/core/lvm2/lvm.service ./lvm.service
--- /var/abs/core/lvm2/lvm.service	2013-01-29 18:05:16.000000000 -0500
+++ ./lvm.service	2013-01-29 21:11:36.993335594 -0500
@@ -7,6 +7,7 @@
 Conflicts=shutdown.target
 
 [Service]
+ExecStop=/sbin/vgchange --monitor n
 ExecStart=/sbin/vgchange --available y
 Type=oneshot
 TimeoutSec=0