If a physical volume fails or otherwise needs to be replaced, you can label a new physical volume to replace the one that has been lost in the existing volume group by following the same procedure as you would for recovering physical volume metadata, described in 第 6.4 节 “修复物理卷元数据”
. You can use the
arguments of the
command to display the UUIDs and sizes of any physical volumes that are no longer present. If you wish to substitute another physical volume of the same size, you can use the
command with the
arguments to initialize a new device with the same UUID as the missing physical volume. You can then use the
command to restore the volume group's metadata.