I used this command from the Nearstore ndmpcopy -sa root:passwd -da root:passwd 840:/vol/vol0/test NearStore:/vol/vol0/ (I used the real names for the 840 and the Nearstore)
This is what I got: Ndmpcopy: starting copy [13] Ndmpcopy: Trouble connecting to destination NearStore Ndmpcopy: fatal error. Aborting.... Ndmpcopy: Done