10.5: Exclude local iDisk mirror disk from Time Machine

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10.5: Exclude local iDisk mirror disk from Time Machine | 6 comments | Create New Account

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10.5: Exclude local iDisk mirror disk from Time Machine
Authored by: imcquill on Thu, Nov 8 2007 at 11:08AM PST

You are correct. It is easy to check. Right click time machine and back up now. Then go to your time machine volume, check the amount of space taken up by used space. Then, make a tiny change on the idisk.. say add a byte to some text file. Then backup again with time machine. My idisk has about 1GB of space used but after this test, the time machine volume is only using about 1MB of extra space from the first backup.. it does not backup the entire volume, but only the *bands* within the package of the sparsebundle which have changed.