- You need to know how much space you have.
- Extend the vm–pool
example :
[root@dom0 51lieal]# vgs
VG #PV #LV #sn Attr VSize VFree
qubes_dom0 2 60 0 wz--n- 1.37t 99.97g
[root@dom0 51lieal]# lvextend -L +99.97GiB /dev/mapper/qubes_dom0-vm--pool -r
Wait for some time, and then your vm-pool wlll extend.