Editor's Note: following a review is part of the series of GemFest the Macworld 2011. Every day from mid-June to July, the Macworld staff will use the Mac Gems blog to briefly cover a favorite free or low-cost program. visit the Mac Gems homepage for a list of past Mac Gems.Déjà vu is a simple system preference pane, easy to configure which helps you backup your data to any directly attached or attached drive including optical media such as network.Déjà vu works similarly to Time Machine, Apple integrated backup software, but it offers many configuration options more allowing you to select volumes or folders that you want to save, choose if you want that these records backed up daily, weekly, monthly or manually, and allows for that you set the time when you want each of these backups take place.
You create backups again by opening system preferences and selecting déjà vu. When you perform this déjà vu displays information about all your recent backups, which allows you to find out whether or not they have completed successfully. You'll also see a list of all your backup sets. This list is divided into four columns, the first contains a checkbox allowing you whether or not to set the backup is enabled and the other three of which display when the backup will take place, which is be saved and where it will backup to. If a backup volume is unavailable déjà vu "Where" column displays a small warning icon to let you drive is not available.
Beyond backups of base that déjà vu also offers options to repair the volume permissions before backup begins, clone volumes of complete startup and create versioned backups, and perform a one-way synchronization of folders. Only real weakness of the application is that it can back up the data if a user is not logged.
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