What is the difference between the «Backup Type» option values in «Scheduled Backup Settings» backend configuration block?

dmitrii_fediuk · June 24, 2017, 10:12am

The option has 4 possible values:

«Database»
«Database and Media»
«System»
«System (excluding Media»

Magento/Backup/etc/adminhtml/system.xml

magento/magento2/blob/2.2.0-RC1.1/app/code/Magento/Backup/etc/adminhtml/system.xml#L17-L23


<field id="type" translate="label" type="select" sortOrder="20" showInDefault="1" showInWebsite="0" showInStore="0">
    <label>Backup Type</label>
    <depends>
        <field id="enabled">1</field>
    </depends>
    <source_model>Magento\Backup\Model\Config\Source\Type</source_model>
</field>

Magento\Backup\Model\Config\Source\Type::toOptionArray()

github.com

magento/magento2/blob/2.2.0-RC1.1/app/code/Magento/Backup/Model/Config/Source/Type.php#L33-L40


public function toOptionArray()
{
    $backupTypes = [];
    foreach ($this->_backupData->getBackupTypes() as $type => $label) {
        $backupTypes[] = ['label' => $label, 'value' => $type];
    }
    return $backupTypes;
}

Magento\Backup\Helper\Data::getBackupTypes()

github.com

magento/magento2/blob/2.2.0-RC1.1/app/code/Magento/Backup/Helper/Data.php#L52-L65


/**
 * Get all possible backup type values with descriptive title
 *
 * @return array
 */
public function getBackupTypes()
{
    return [
        \Magento\Framework\Backup\Factory::TYPE_DB => __('Database'),
        \Magento\Framework\Backup\Factory::TYPE_MEDIA => __('Database and Media'),
        \Magento\Framework\Backup\Factory::TYPE_SYSTEM_SNAPSHOT => __('System'),
        \Magento\Framework\Backup\Factory::TYPE_SNAPSHOT_WITHOUT_MEDIA => __('System (excluding Media)')
    ];
}

The constants

github.com

magento/magento2/blob/2.2.0-RC1.1/lib/internal/Magento/Framework/Backup/Factory.php#L21-L44


/**
 * Backup type constant for database backup
 */
const TYPE_DB = 'db';


/**
 * Backup type constant for filesystem backup
 */
const TYPE_FILESYSTEM = 'filesystem';


/**
 * Backup type constant for full system backup(database + filesystem)
 */
const TYPE_SYSTEM_SNAPSHOT = 'snapshot';


/**
 * Backup type constant for media and database backup
 */
const TYPE_MEDIA = 'media';


/**
 * Backup type constant for full system backup excluding media folder
 */
const TYPE_SNAPSHOT_WITHOUT_MEDIA = 'nomedia';

dmitrii_fediuk · June 24, 2017, 10:31am

Conclusion

The «Backup Type» option values have the following meaning:

«Database»: only the database will be backed up
«Database and Media»: the database and the media files (the products images) will be backed up, but the software code will not be backed up.
«System»: the full backup
«System (excluding Media)»: the full backup without the media files (the products images)