question about new changer API in 3.0.1beta1

[Jean-Francois Malouin]

Hi,

Slowly going through the new stuff in 3.0.1beta1 and I came across the
following in the amanda-changers.7 manpage:

       define changer hp-robot {
           tapedev "chg-robot:/dev/sg1"
           property "tape-device" "0=tape:/dev/nst0"
           property append "tape-device" "1=tape:/dev/nst0"
           device_property "BLOCK_SIZE" "512k"
       }

What the point of defining 2 tape devices that points to the same
physical drive? Or Am I missing (once more) something obvious?

jf