Show Table of Contents
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.
# lvs -a -o name,copy_percent,devices my_vg
LV Copy% Devices
my_lv 15.20 my_lv_mimage_0(0),my_lv_mimage_1(0)
[my_lv_mimage_0] /dev/sde1(0)
[my_lv_mimage_1] /dev/sdf1(0)
[my_lv_mlog] /dev/sdd1(0)
The following command converts the mirrored logical volume
my_vg/my_lv to a RAID1 logical volume.
#lvconvert --type raid1 my_vg/my_lv#lvs -a -o name,copy_percent,devices my_vgLV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0) [my_lv_rimage_0] /dev/sde1(0) [my_lv_rimage_1] /dev/sdf1(0) [my_lv_rmeta_0] /dev/sde1(125) [my_lv_rmeta_1] /dev/sdf1(125)
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.