https://naiwaen.debuggingsoft.com/2021/08/aix-%e0%b9%80%e0%b8%9e%e0%b8%b4%e0%b9%88%e0%b8%a1%e0%b8%9e%e0%b8%b7%e0%b9%89%e0%b8%99%e0%b8%97%e0%b8%b5%e0%b9%88-disk-%e0%b8%9a%e0%b8%99-aix/