HT1553: Mac OS X v10.5, v10.6: How to back up and restore your files
Learn about Mac OS X v10.5, v10.6: How to back up and restore your files
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Helpful answers
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Jan 19, 2013 6:05 AM in response to daddy not computer savvyby WZZZ,What exactly is your question?
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Jan 19, 2013 6:42 AM in response to daddy not computer savvyby Klaus1,Apparently i need 1T for a 320G HD that is not even close to full
Says who?
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Jan 19, 2013 7:09 AM in response to daddy not computer savvyby noondaywitch,For an explanation of how TM works, read Pondini's TM articles; http://pondini.org/TM/Home.html
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Jan 20, 2013 5:09 AM in response to WZZZby daddy not computer savvy,the question is why do I need so much more space then what I am saving?
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Jan 20, 2013 5:12 AM in response to Klaus1by daddy not computer savvy,my wife went to back up her mac book 320G with this time machine deal. she got some kind of message saying she needs 1TB worth of space to do the back up. everything I am finding says 2-3x the space too, so I get that it's needed... im just curious as to why you need so much more space to back up less stuff?
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Jan 20, 2013 5:17 AM in response to daddy not computer savvyby Klaus1,If you read the link noondaywitch posted you would know that Timemachine needs that space for multiple backups.
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Jan 20, 2013 5:19 AM in response to daddy not computer savvyby WZZZ,Because it's constantly making backup "snapshots."
See this for an explanation.
Btw, there are alternatives to Time Machine. You can choose to make a bootable clone of your system. This would only require an external drive the same size as your internal. Restoring an entire system from TM is more complicated and you can't boot from it either.
Look up Carbon Copy Cloner or SuperDuper.