I don't want to cut this section, because the points that it makes are
important ... but those points aren't a good fit for the purposes of this
document. If someone needs some examples of why badly managed chain
replication can lose data, this is the section to look in. ^_^
All of the major surgery required to move Chain Manager design & discussion
details out of the high-level-machi.tex document are complete. I've done
only a very small amount of work on the original high-level-machi.tex to
fix document flow problems.
There's probably a good way to have LaTeX automatically manage the
mutual references between the now-split documents, but I didn't know about,
sorry.