挂载磁盘报错"mount: /dev/sdd1 already mounted or /data3 busy"

今天有在服务器挂载硬盘的时候报错，提示：

mount: /dev/sdd1 already mounted or /data3 busy

解决过程记录：

[root@localhost ~]# dmsetup status
ResultFromHadoop-ResultFromHadoop: 0 3907026944 linear
ResultFromHadoop-ResultFromHadoop: 3907026944 3907026944 linear
ResultFromHadoop-ResultFromHadoop: 7814053888 3907026944 linear

[root@localhost ~]# dmsetup remove_all

[root@localhost ~]# dmsetup status

No devices found

再次执行mount /dev/sdd1 /data3就可以进行挂载了。

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