Source

To modify the backup source details:

  1. Click on the check box, to select or unselect the database table.
  2. Click [Save] to save the changes and exit.

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The 'information_schema' and 'performance_schema' databases are MariaDB virtual system databases, which contains information about the user databases on the MariaDB instance, are automatically excluded from the backup source. They are read-only and cannot be backed up, therefore they are grayed out and cannot be selected.