For example, ECC Ram is crucial thing so you don't need to rebuild from scratch even in case of crash. Not sure how many people are aware of that. (not talking about RAM as a storage, just for the operation of steemd). When ECC Ram is used, the chances of file corruption are unlikely to happen even when kill -9 is used.
On another side, I am a bit fascinated about these things not being documented, and I got an impression that there is a strong amount of 'selfishness' when it comes to knowledge exchange, which is totally opposite from Open Source Ideology, that blockchain evolved from.