iostat

http://m.blog.csdn.net/article/details?id=43196731

http://www.cnblogs.com/ToDoToTry/p/4451281.html

https://m.aliyun.com/yunqi/articles/53584

http://m.blog.csdn.net/article/details?id=39478959

原文：http://www.cnblogs.com/WCFGROUP/p/6244451.html