I have an NFS server (machine A) that mounts a 4TB internal hard drive at /data/Storage, and exports /data to client (Machine B). If I put a regular file in MachineA:/data, you can see it in MachineB:/space/MachineA

But if you navigate to MachineB:/space/MachineA/Storage the folder appears empty. You can see its contents by navigating to MachineA:/data/Storage

How can I access the disk from the client?

Here are the relevant configs


/data           MachineB(rw,sync,no_subtree_check,no_root_squash)


UUID=385ab198-8b40-46f8-aacf-b6fe151d1962 /data/Storage ext4 errors=remount-ro 0 0


MachineA:/data     /space/MachineA    nfs     auto,_netdev,hard,bg,rsize=8192,wsize=8192,tcp,intr 0 0

This is normal behaviour. Mounted filesystems are normally not re-exported by nfs. You have to share both. E.g. you can add this to MachineA exports:

/data/Storage           MachineB(rw,sync,no_subtree_check,no_root_squash)

You might also need to add crossmnt option into the /data options in exports of MachineA or nohide to /data/Storage options in order to see it mounted as you expect. Do not forget to run exportfs to update exports.

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