1. audit

lsscsi -s
[0:0:0:0]    disk    ATA      KINGSTON SA400S3 0000  /dev/sda    240GB
fdisk -l /dev/sda
//
/dev/sda1       34      2047      2014  1007K BIOS boot
/dev/sda2     2048   2099199   2097152     1G EFI System
/dev/sda3  2099200 468862094 466762895 222.6G Linux LVM
lsblk
NAME               MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                  8:0    0 223.6G  0 disk
|-sda1               8:1    0  1007K  0 part
|-sda2               8:2    0     1G  0 part
`-sda3               8:3    0 222.6G  0 part
  |-pve-swap       253:0    0     8G  0 lvm  [SWAP]
  |-pve-root       253:1    0  65.6G  0 lvm  /
  |-pve-data_tmeta 253:2    0   1.3G  0 lvm
  | `-pve-data     253:4    0 130.3G  0 lvm
  `-pve-data_tdata 253:3    0 130.3G  0 lvm
    `-pve-data     253:4    0 130.3G  0 lvm
pvs
  PV         VG  Fmt  Attr PSize    PFree
  /dev/sda3  pve lvm2 a--  <222.57g 15.99g
vgs
  VG  #PV #LV #SN Attr   VSize    VFree
  pve   1   3   0 wz--n- <222.57g 15.99g <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
lvs
  LV   VG  Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data pve twi-a-tz-- <130.27g             0.00   1.22
  root pve -wi-ao----   65.64g
  swap pve -wi-ao----    8.00g

2. actions

2.1. make one big data

lvresize -l +100%FREE pve/data
  Size of logical volume pve/data_tdata changed from <130.27 GiB (33348 extents) to <146.26 GiB (37442 extents).
  Logical volume pve/data_tdata successfully resized.
lvs
  LV   VG  Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data pve twi-a-tz-- <146.26g             0.00   1.22 <<<<<<<<<<<<<<<<<<<<<<<<<
  root pve -wi-ao----   65.64g
  swap pve -wi-ao----    8.00g

2.2. use the rest of the data lvm an create a data1 lvm

lvcreate pve --name "data1" --extents "100%FREE"
mkfs.ext4 -m "0.1" -L "data1" /dev/mapper/pve-data1
mkdir -p /data1
mount /dev/mapper/pve-data1 /data1/

2.3. destroy the data lvm and recreate from scratch

lvremove -y pve/data
lvcreate pve --name "data" --size "100G" --thin
lvcreate pve --name "data1" --extents "100%FREE"
mkfs.ext4 -m "0.1" -L "data1" /dev/mapper/pve-data1
mkdir -p /data1
mount /dev/mapper/pve-data1 /data1/