> For these reasons, it’s generally recommended not to let ZFS go past 80% disk utilization.
There's another reason why you don't want to go beyond 80% utilization, and that's because the block allocator will switch behavior to a more involved search, which can take a lot more time.
Thus allocating new blocks can get really slow once you get past 80%.
There's another reason why you don't want to go beyond 80% utilization, and that's because the block allocator will switch behavior to a more involved search, which can take a lot more time.
Thus allocating new blocks can get really slow once you get past 80%.