Upgrade to CentOS and add 2 nodes to existing
Est. elapse: 4 weeks (start 7/31, Wed?); Est. labor: 120 hours
- Pull an old CN and convert to CentOS HD ("new HN")
- Add new CNs to new HN
- Add old CN's to new HN
- Convert old HN to CN and add it to new HN
- Later; see P41: Migrate to ChemIT Community Head Node
- Add all CN's to ChemIT Community HN
- Convert Collum HN to CN and add to ChemIT Community HN