lvconvert
converts or modifies the type, redundancy, or state of logical volumes
TLDR
Convert to RAID1
$ sudo lvconvert --type raid1 -m 1 /dev/vg_name/lv_name
Remove mirroring (convert to linear)$ sudo lvconvert -m 0 /dev/vg_name/lv_name
Merge snapshot into origin$ sudo lvconvert --merge /dev/vg_name/snapshot_lv
Repair degraded RAID$ sudo lvconvert --repair /dev/vg_name/lv_name
Convert to thin pool$ sudo lvconvert --type thin-pool --poolmetadata /dev/vg_name/meta_lv /dev/vg_name/pool_lv
SYNOPSIS
lvconvert [options] vg/lv
DESCRIPTION
lvconvert converts or modifies the type, redundancy, or state of logical volumes. It can add/remove mirrors, convert between linear and RAID, merge snapshots, and convert to thin pools.
PARAMETERS
--type TYPE
Convert to specified type (raid1, linear, thin-pool, cache-pool)-m, --mirrors N
Number of mirrors (0 removes mirroring)--merge
Merge snapshot back into origin--repair
Repair degraded RAID volume--poolmetadata LV
Specify metadata LV for thin pool--stripes N
Number of stripes for conversion
INSTALL
sudo apt install lvm2
sudo dnf install lvm2
sudo pacman -S lvm2
sudo apk add lvm2
sudo zypper install lvm2
nix profile install nixpkgs#lvm2
CAVEATS
Requires root privileges. Data migration may take time. Snapshot merge applies on next activation.
