16.13 Using LVM2 on Multipath Devices

By default LVM is configured to ignore components of multipath devices. This is most likely desired behavior, but it can be changed in the /etc/lvm/lvm.conf. When multipath_component_detection is set to 0, LVM is scanning multipath component devices. The default entry in the lvm.conf is:

    # By default, LVM2 will ignore devices used as component paths
    # of device-mapper multipath devices.
    # 1 enables; 0 disables.
    multipath_component_detection = 1