Data safety is becoming increasingly important and this talk will introduce this to the audience, to open up beyond traditional losses around data integrity. When you think of SRE, RPC services and service operations immediately come to mind - Errors, latency, managing the size and number of tasks etc., For most products, there is another important story - that of data flows and data sets. A critical error in data (e.g. critical highway missing a segment in its route etc.,) could have widespread consequences to users. No amount of RPC service level reliability will protect against that risk. We need to think about safety against data loss.