Three nines is luck. Four is design.

Going from 99.9% to 99.99% uptime cuts allowed downtime from ~8.8 hours a year to ~52 minutes. You do not get there by buying a bigger box.

Every validator runs behind at least three geo-distributed nodes with automated failover and 24/7 heartbeat monitoring. When one fails, another is already signing.

DK

Dmitri Kovac

OriginStake

Validator operations lead at OriginStake. Writes about slashing protection, sentry topology and the boring engineering that keeps networks honest.