They cover some good points but I would also add: Don't just back up your data. - Test your backups. - Test Disaster Recovery Failover. - Ensure backups can

They cover some good points but I would also add: Don't just back up your data. - Test your backups. - Test Disaster Recovery Failover. - Ensure backups can not be tampered with, even by a malicious or negligent administrator or by automation. - Strive toward some day having N+1 active-active multi-region when it is feasible and affordable to do so.