Linux文件恢复
https://bbs.huaweicloud.com/blogs/345168
dd命令 https://blog.csdn.net/hezhanran/article/details/122662675
文件测速
hdparm -t /dev/sdxx
https://bbs.huaweicloud.com/blogs/345168
dd命令 https://blog.csdn.net/hezhanran/article/details/122662675
文件测速
hdparm -t /dev/sdxx