Svnadmin dump takes a while....
Decision is to restructure our repository and 'break' it into smaller ones. Because we've always thrown stuff into each new DF release we've always had a complete new repo top level folder for each release. Not as much goes into releases nowadays. We'll move to a single code base but different programs folders and libraries. Seems like it should reduce the whole thing to a manageable size. Then maybe we can play with GIT.