- everything else
When buying new hardware there are a few points you should check beforehand:
- Replacement Hardware
- Warranty handling
- Rack rails compatibility
- Remote management
- Power consumption
- complete vs barebone vs DIY servers
- Remote Management (ILOs)
Tape Drives / Auto Loader
For long term backup tapes are still the best solution. For huge amounts of data an autoloader is must. Its a mechanical beast with damn moving parts that tend to get stuck/break/do other things.
CH's rack layout - also known as "the golden way"
Philip's rack wiring procedure - also known as "the true way"