5.4.16.4. Converting a Mirrored LVM Device to a RAID1 Device
You can convert an existing mirrored LVM device to a RAID1 LVM device with the
lvconvert command by specifying the --type raid1 argument. This renames the mirror subvolumes (*_mimage_*) to RAID subvolumes (*_rimage_*). In addition, the mirror log is removed and metadata subvolumes (*_rmeta_*) are created for the data subvolumes on the same physical volumes as the corresponding data subvolumes.
The following example shows the layout of a mirrored logical volume
my_vg/my_lv.
The following command converts the mirrored logical volume
my_vg/my_lv to a RAID1 logical volume.