1. Scan all new disk

for host in /sys/class/scsi_host/*; do echo "- - -" | sudo tee $host/scan; ls /dev/sd* ; done

2. Check attached disk

    fdisk -l

3. heck phisical disk on lvm pvs

PV VG Fmt Attr PSize PFre
/dev/sda3 ubuntu-vg lvm2 a– <48.00g 0
/dev/sdb3 ubuntu-vg lvm2 a– <99.00g 0

4. if vgname is same do this instead

vgimportclone -n ubuntu-vg_clone /dev/sdb3

5. active the vg

vgchange -ay

then check again using pvs the vg name will be change like we set before

PV VG Fmt Attr PSize PFre
/dev/sda3 ubuntu-vg lvm2 a– <48.00g 0
/dev/sdb3 ubuntu-vg_clone lvm2 a– <99.00g 0

6. and then we can mount the data from LVM

mount /dev/ubuntu-vg_clone/ubuntu-lv /mnt

7. Do as you wish

new LVM is mounted at /mnt