> If using a distributed system with (semi-)synchronous WAL replication is not an option and losing incremental data is not acceptable, use redundant power supplies.
Also be sure to plug each redundant power supply into a separate UPS, and avoid equipment that has redundant power supplies on a single feed. UPS failures are a bear.
Also be sure to plug each redundant power supply into a separate UPS, and avoid equipment that has redundant power supplies on a single feed. UPS failures are a bear.