how large should a disk for time machine be vs the hard disk

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Norris Author

Level 1

16 points

how large should a disk for time machine be vs the hard disk

Can anyone tell me how large a disk for time machine be vs the size of the hard disk?

MacBook Pro (17-inch Early 2011), Mac OS X (10.6.8)

Posted on Sep 2, 2012 1:40 PM

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Answer 1

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Kappy

Level 10

361,741 points

Sep 2, 2012 1:43 PM in response to Norris

At least twice the size of the disk(s) it backs up.

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Answer 2

Sep 2, 2012 1:44 PM in response to Norris

At least dopple.

read this https://discussions.apple.com/thread/4011544?answerId=18589023022#18589023022

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Answer 3

Sep 2, 2012 1:45 PM in response to Norris

I usually say 2x or more but your milage may vary on that based on how much your hard drive is actually used, what sort of data (how large the files are) you typically handle and how far back you want your TM backup to go.

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