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10.5: Make Time Machine work well with Entourage 2004
Authored by: carmst on Jun 06, '08 08:53:37AM

This is a really great idea!

Maybe it's obvious to others but it wasn't quite clear to me at first how it worked... The key is that Apple's sparse bundle volumes are invisibly split up into small 8MB files, which OSX reassembles into a contiguous volume when the bundle is mounted.

Making a small, 1KB change to a 10GB file would ordinarily mean Time Machine would have to copy the full 10GB file again. If it's stored in a sparse bundle instead, only the 8MB chunk that contains the change would need to be backed up. Cool!



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10.5: Make Time Machine work well with Entourage 2004
Authored by: seika7 on Jun 06, '08 09:29:34AM

Thanks for the explanation; that is a cool idea!



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