Given a whole dump blob that has landed in holding disk, I can look at
it (for example, to answer the question "Why is that so _big_?") with:

   dd if=foo.verilab.com._.1 bs=32k skip=1 | tar tfv - | sort +2nr | head

This is pretty well documented.

What if, instead, my dump blob is "chunked", as in this case (1GB chunks):

  % ls -ltr foo.verilab.com._.__disc1.*
  -rw-------  1 amanda disk 1073741824 Nov 19 00:39 foo.verilab.com._.__disc1.1
  -rw-------  1 amanda disk  123912192 Nov 19 00:40 
foo.verilab.com._.__disc1.1.1

I can certainly do the same 'dd if=' game on the initial 1GB chunk,
but what if I want to find the biggest thing across the whole blob (2
files in this case)?  Thanks,

Will