HP Rp3440-4 - 9000 - 0 MB RAM Software Manual page 12

And then, take 'ceres' offline. Note the results in the following screen snapshot.
Figure 8: Note that the file 'mccall_test.txt' is the file from \\mccall\shared_stuff, since the 1st referral to \\ceres\shared_stuff
was unavailable. The failure to find \\ceres\shared_stuff was transparent to the user.
NOTE: Both the client AND the server hosting the MS DFS root do some
form of caching in regards to links that have been followed. Because of
this, if you change a share such that it no longer hosts MS DFS links, or visa
versa, you may have to reboot your clients that have accessed this share. It
is also recommended that you restart samba after changing a share
to/from a MS DFS root. Terpstra and Kalele in Chapter 16 of 'The Official
Samba-3 HOWTO and Reference Guide ' recommend creating a NEW
share when introducing a MS DFS root, rather than converting an existing
share.