Problem Description
In some Linux environments, especially Red Hat 7.4, the snapshot directory page is automatically mounted during NFS mounting, as shown in the following figure.
The host operating system automatically mounts the snapshot directory whenever the client accesses the snapshot directory. (The snapshot directory has an independent file system ID that is different from the current file system ID.)
Solution:
Method 1:
1. Unmount all mounted file systems and snapshot directories on the host.
2. Run the following command to disable the automatic mounting function on the storage device:
admin:/>change service nfs_config v3_automount_switch=disable v4_automount_switch=disable
Method 2:
Confirm with the customer whether the file system will be accessed. If the host does not access the snapshot, select the snapshot invisible in the file system configuration on the storage side. Unmount the related file system.
