You need to download the following package if you want to backup AFS volume
with amanda:
  ftp://ftp.ccmr.cornell.edu/pub/amanda-afs/amanda-afs.tar.gz
or 
  anonymous cvs from :pserver:anonymous@cvs.ccmr.cornell.edu:/usr/common/cvs
  and checkout project 'amanda-afs'

The patch to amanda is already included in this distribution.
