How does ZRM enable Point-in-Time Recovery?
ZRM provides point-in-time recovery by recovering from the full and incremental backups. The incremental backup stores data changed since the last (full or incremental) backup by leveraging MySQL binary logs. The binary log saves all database events, thus providing a very fine granularity of recovery points. ZRM makes it easy to recover data from incremental backups even when multiple incremental restores are required to achieve the recovery point. Although incremental backups require that MySQL binary logs are enabled, in most cases this results in a performance hit of less than 1%.
