Hey,
LagMirror is a little different.
The objective of LagMirror is to run YUM as a daily cron job and minimize the risk that a show-stopping glitch could get onto and bring down a mission-critical server.
Packages that are quickly superseded are not put into the Lag mirror directories at all. The system takes advantage of the fact that show-stopping glitches are typically discovered and fixed quickly.
Although LagMirror is not for everyone, it could work well for systems running on common hardware without any customized packages.
This is work in progress, but it seems to be working.
For more information, get the README here:
ftp://www.advanced-app.com.hk/
One can get the Python source from the "source" directory under the above URL. Interested persons are invited to try it.
Feedback is welcome.
Rick