AFter several test.
1.- If put cfq scheluder, KVM VPS don't work. Very heavy load on server
2.- If put deadline scheluder, backup grow, grow, grow
Example:
VPS 999
43810819 7,2G -rw-r--r-- 1 root root 7,1G may 10 20:22 vm-999-disk-1.qcow2
43810820 5,1G -rw-r--r-- 1 root root 5,1G may 9 22:26...