Normally, AMANDA uses one tape per run. With a tape changer (even the
chg-manual one), the number of tapes per run may be set higher for extra
capacity. This is an upper limit on the number of tapes. AMANDA uses
only as much tape as it needs. AMANDA does not yet do overflow from one
tape to another. If it hits end of tape (or any other error) while
writing an image, that tape is unmounted, the next one is loaded, and
the image starts over from the beginning. This sequence continues if the
image cannot fit on a tape.