EVA 6400/8400:How to query performance and output logs怎样查询性能并输出日志

如何查询如下指标并输出相关的日志或者文件

1.存储已用空间
2.存储剩余空间
3.存储使用率
4.存储数据实时生成量

Google Translated

How to query the following indicators and output related logs or files

1. Store used space
2. Store the remaining space
3. Storage usage
4. Store data real-time generation