disk出现自己去掉挂载，通过重启服务器挂载恢复，相关日志 <img width="1666" alt="log" src="https://user-images.githubusercontent.com/19342276/61992644-b0899b00-b093-11e9-98a4-af680240f7df.png"> [logs.txt](https://github.com/AliyunContainerService/flexvolume/files/3438013/logs.txt)
