如何计算磁盘占用率?df命令显示的使用率包含预留空间吗,解析df命令,如何准确计算磁盘占用率及预留空间的影响
How to calculate disk usage rate? Does the usage rate displayed by the df command include reserved space? Analyze the df command, how to accurately calculate the disk usage rate and the impact of reserved space
以上为机器翻译结果，长、整句建议使用 人工翻译 。