If you make the storage folder the mount point, then it is impossible to delete it.
The smb share path (or NFS share path) should be
/limit/smb/share/Tivoli/storage
Alternatively you change the owner to root, perhaps give write access to a group (where all users must be a member), or to everybody, in any case protect it with a t-bit, similar to /tmp.
Code:
chown root storage
chmod 1777 storage
Or in human readable notation
Code:
chmod ugo+w storage
chmod +t storage
Verify with
