Does Time Machine back up every file every time?<article>
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<p>Time Machine backups are unfussy: unlike many proprietary backup software packages, you can browse a Time Machine backup either through its interface or via the drive in the Finder. However, it appears as if every backup is a complete backup.</p><p>This concerned Macworld reader Peter, who just purchased a new iMac and a 4TB external drive to use with Time Machine. “This is going to fill up my external drive fairly quickly,” he worries.</p><p>Time Machine just looks like it’s making a full backup every time it creates one, but it’s really using a clever technique to only copy changed files at each hourly interval.</p><p>While Time Machine’s method has been the same since its introduction, it’s opaque to most users, because it’s meant to work without requiring any maintenance or fussing. (In fact, that’s a flaw, too, because there are no tools to fix corruption or control any of the settings, like frequency and purging of older files.)</p><p class="jumpTag"><a href="/article/3246207/macs/does-time-machine-back-up-every-file-every-time.html#jump">To read this article in full, please click here[/url]</p></section></article>
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Does Time Machine back up every file every time?
