>I tried this once, and the 'move nodedata' processes terminated immediately,
>reporting successful completion but not moving any data. It turns out that
>'move nodedata' for copy storage pools requires mounting the copy storage
>pool volumes containing the data to be moved; it will not obtain input
>data from primary storage pool volumes as reclamation and 'move data'
>processes will.

Indeed.  In my notes on the command, I include:

                                        As of 2003/11 the Reference Manual fails
                                        to advise what the Tech Guide does: that
                                        the Access mode of the volumes must be
                                        READWRITE or READONLY, which precludes
                                        OFFSITE and any possibility of onsite
                                        volumes standing in for the offsite
                                        vols.

You obviously need to buy more tapes and library extensions from that there
vendor.  :-)

    Richard