, e.g. wwid, so the unstable device name is used as
the device id. After reboot, or if the device is reattached,
the device name may change, in which case lvm will not find
the expected PV on the device listed in the devices file.
This setting controls whether lvm will search other devices,
outside the devices file, to look for the missing PV on a
renamed device. If "none", lvm will not look at other devices,
and the PV may appear to be missing. If "auto", lvm will look
at other devices, but only those that are likely to have the PV.
If "all", lvm will look at all devices on the system.