03-17-2012, 04:06 PM #1Why does Time Machine say it requires 150GB more than the size of Data...
Why does Time Machine say it requires 120GB more than the size of Data i'm trying to back up?
Estimated size 650GB
Available space 690GB
Time Machine "requires" 770GB
I'm a bit lost, thats a big mark-up
03-18-2012, 02:32 AM #2
- Member Since
- Jan 22, 2010
- Victoria, BC
- Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
Time Machine is not a clone. It does the initial backup of everything and then does incremental backups adding what's changed. Perhaps it "requires" a 20% margin for doing that.
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