Now the two option:
for full/not full disk check are all enabled always, i think it's more reasonable to enable or disable this, and default will be all enabled.
In our clusters, when the disk is so huge we want to use min-free-space-per-disk-mb.
In our clusters, when the disk is so small we want to use max-disk-utilization-per-disk-percentage.
We should make this more reasonable and not confused.