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Old 06-20-2008, 10:40 PM
aeko aeko is offline
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Slow Smart Update to encrypted sparse image

I created an encrypted sparse disk image from the shell using hdiutil and then have SD backing up my disk to it. It seems to be a whole lot slower Smart Updating the disk (3.33MB/s VS. 100+MB/s previously) though than it was before when I just backing up directly to my USB hard disk.

Is there reason why it's so much slower?
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Old 06-20-2008, 10:43 PM
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dnanian dnanian is offline
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Sure. You've added a number of levels of indirection, including encrypting, and this is likely the first copy, so it's going to be copying a lot more. (A full backup isn't going to go at 100MB/s to USB the first time through...)
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Old 06-21-2008, 01:25 PM
aeko aeko is offline
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Actually, my fault. I didn't notice that I didn't have Smart Update turned on and it was completely erasing my encrypted sparse image and then backing it up. It's much faster now. Thanks for the quick reply!
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Old 06-21-2008, 01:41 PM
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You bet: glad you're all set.
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