Server Backups & Rollback
Magento Enterprise Edition gives you the ability to back up different parts of the system—such as the database, file system, or both—and to rollback automatically. Files are compressed using the .gz and .tgz formats.
Access to the Backups and Rollback management tool can be restricted by configuring user permissions for backup and rollback resources. To restrict access, leave the corresponding checkbox unselected. If you need to grant access to the rollback resources, you must grant access to backup resources as well.
Always perform a backup before installing an extension or updating Magento. Magento Connect Manager (MCM) includes a backup option that you can use before installing an extension or upgrading to a new release.