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Another major benefit of using DMGs
Authored by: BryanD on Aug 27, '08 12:52:51PM

You forgot another major benefit that's available with stuff located on DMG-style disk volumes — security. When you make the DMG (via Disk Utility), select the "Encryption: ...AES..." option and the disk volume (i.e., the DMG file) will be encrypted.

In fact, we use this strategy for all our corporate and customer information to protect everyone's privacy (and our intellectual property) if a system is ever stolen (or "lost," in the case of laptops). We even have our MySQL databases located on (fixed-size) encrypted DMGs ... takes some modification to the startup stuff to ensure that the disk volume is mounted before things are started, but we've been using this strategy for years and it works just fine ('though we only use fixed-size/non-sparse images as we did have problems with sparse images when there's a crash, but that was likely back with 10.3 so it may be better, now).



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