Backups are a key part of a disaster recovery strategy, making sure you can continue or restore your business in case of an unwanted event with your data. We always work on trying to improve Percona XtraBackup reliability, always favoring consistency, attempting to make unwanted outcomes be noticed as earlier as possible in the process. [&]

https://www.percona.com/blog/percona-xtrabackup-changing-to-strict-by-default/