why do I have all this used space after erasing with disk utility

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Level 1

6 points

So, I used disk utility to erase a drive of mine. Immediately after erasing, I right clicked "get info" and this was what I got:

I had 223.1 MB already used immediately after erasing!

So, I opened terminal cd'd to the drive and typed "du -h" and this is what I got:

This does not add up to 223.1 MB and I don't understand why so much space is being used immediately after an erase. Any ideas?

MacBook Pro (15-inch Late 2011), OS X Mountain Lion (10.8.3)

Posted on Nov 29, 2013 2:44 AM

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Answer 1

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Level 7

31,989 points

An empty hard drive still must have hidden data structures in place to manage the file system. This is completely normal.

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