This documentation is for an older version. If you're using the most current version, select the documentation for that version with the version switch in the upper right corner of the online documentation, or by downloading a newer PDF or EPUB file. MySQL Cluster Backup Concepts

A backup is a snapshot of the database at a given time. The backup consists of three main parts:

Each of these parts is saved on all nodes participating in the backup. During backup, each node saves these three parts into three files on disk:

In the listing above, backup_id stands for the backup identifier and node_id is the unique identifier for the node creating the file.