Freeze break: cachefilesd

Greetings. I'd like to take download05 out of dns and test out using cachefilesd on it. We tried this a number of years ago with rhel6 and ran into problems, but perhaps rhel7 might be more stable. Basically this would be setting up a 500GB cache on the server and then caching 500GB of stuff from nfs. In theory this would reduce load on the backend NFS server. There is a pending netapp upgrade and storage folks would need to throttle our access while the upgrade was happening, so the more load we can take off the filer, the better it will be when we have to do the upgrade. I'd take download05 out of dns (so no one should hit it), setup cachefilesd and test. If all goes well on testing we could re-add it and see if handles normal load. If not or if it cannot handle regular load we can just repave it and put it back the way it is now. 4 download machines should be fine for the normal load we have, and this testing should long be done before the end of the week when we might need to stage Alpha. Thoughts? +1s? kevin