James,
You can do that, but you will have to hand craft the volume file. volgen looks for even numbers as you have already noticed.
With hand crafting of volume files, you can even have a replicate distribute .. so e.g. 2 copies of file, and each replicate node of the graph can have a differing number of distribute servers under it.
something like this can be done to have a replica count of two with 5 servers...
| R1 |----------R1D1
mount--- |-----------|----------R1D2
|
| R2 |-----------R2D1
|-----------|-----------R2D2
|-----------R2D3
The design of translators is so modular that they can be used in any combination. This however used to lead to confusion and hence we developed volgen that produced easy to use and default best-fit configuration.
