To some degree there's always data loss risk... A backhoe could cut a line, you could lose power to a PSU, rack, data center, a meteor could destroy the willam

To some degree there's always data loss risk... A backhoe could cut a line, you could lose power to a PSU, rack, data center, a meteor could destroy the willamette valley, etc. What you want your system to provide you with is the framework to understand the risks and what the recovery looks like and when recovery is a lost cause.