[ovirt-users] Device /dev/sdb excluded by a filter.\n

Since I managed to crash my last attempt at installing by uploading an ISO, I wound up just reloading all the nodes and starting from scratch. Now one node gets "Device /dev/sdb excluded by a filter.\n" and fails when creating the volumes. Can't seem to get passed that -- the other machiens are set up identally and don't fail, and it worked before when installed but now... Any ideas?