What is the magic factor?
But the storage space is free here or am I wrong?
root@PVE01:~# zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
rpool 444G 13.7G 430G - - 6% 3% 1.00x ONLINE -
store01 7.27T 2.14T 5.12T - - 28% 29% 1.00x ONLINE -