Logical Volume Management (LVM)

logical volumes

1. fdisk /dev/sdX (t 8e; for each)
2. partprobe -s
3. pvcreate /dev/sdX /dev/sdY
   • pvdisplay or pvs -v
   • wipefs /dev/sdX may clear errors
4. vgcreate <VG> /dev/sdX /dev/sdY
   • vgdisplay -v or vgs
5. lvcreate -L <SIZE> -n <LV> <VG> (-L fixed size; -l percentage of remaining space)
   • lvdisplay or lvs
6. mkfs.ext4 /dev/<VG>/<LV>
7. mount /dev/<VG>/<LV> <MountPoint>

• lvresize -r -L <SIZE> <LV> (-L -2.5G; -l +100%FREE)

• vgextend <VG> /dev/sdZ

• lvremove, vgremove, pvremove