Why does Time Machine say it requires 150GB more than the size of Data...

MDJCM · MDJCM #1 (**permalink**)

03-17-2012, 03:06 PM

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

chas_m · chas_m #2 (**permalink**)

03-18-2012, 01:32 AM

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.

chas_m #2 (permalink)
Member Since: Jan 22, 2010 Location: Victoria, BC Posts: 13,696 Mac Specs: 2009 MacBook Pro, Black speakers, Black Benq second monitor, black iPhone 4, Black 2012 iPad, etc.	03-18-2012, 01:32 AM 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. Cheers, chas_m -- My essay for switchers and newbies
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Why does Time Machine say it requires 150GB more than the size of Data...

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MDJCM #1 (permalink)
Member Since: Aug 27, 2009 Location: UK Posts: 185 Mac Specs: 2009 13" MBP with SSD	03-17-2012, 03:06 PM 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
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