docker-lvm-init

# stolen from centos docker-storage-setup
VG=vg
POOL_LV_NAME="docker-pool"
DATA_LV_NAME=$POOL_LV_NAME
META_LV_NAME="${POOL_LV_NAME}meta"
CHUNK_SIZE=512K
CHUNK_SIZE_ARG="-c $CHUNK_SIZE"
VG_SIZE=$( vgs --noheadings --nosuffix --units s -o vg_size ${VG} )
META_SIZE=$(( $VG_SIZE / 1000 + 1 ))
DATA_SIZE=40%FREE
lvremove ${VG}/${DATA_LV_NAME}
lvcreate -y -L ${META_SIZE}s -n ${META_LV_NAME} ${VG}
lvcreate -y -l $DATA_SIZE -n ${POOL_LV_NAME} ${VG}
lvconvert -y --zero n $CHUNK_SIZE_ARG --thinpool $VG/$DATA_LV_NAME --poolmetadata $VG/$META_LV_NAME
lvchange --metadataprofile vg--docker-pool-extend ${VG}/${DATA_LV_NAME}
lvs -o+seg_monitor
lvs -o+lv_when_full
ps aux | grep dmev