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How Does Time Machine Work Its Magic?

L

Lenser33

macrumors newbie
Original poster
Dec 28, 2007
5
0
(First of all I have to mention that I am new to posting, just posted yesterday for the first time and received a ton of respnses that solved the problem right away....this is a great community for a MacAddict like myself...THANKS!)

I have a new iMAC 24" that has about 250 Gig of stuff that has been transferred from my old iMAC. I hooked up my external drive to run TIME MACHINE for the first time last night before going to bed thinking it would take hours to xfer all of that info to the external. I started the back up and in about 2 minutes it said that it was finished.

I really don't get it...how does it work?!?!? Does the external REALLY have all of the 250Gig of stuff on it now?

Confused and interested...

thanks!
 
Eidorian speaks the truth. It'll only copy used space; why would it rewrite billions of zeros? Oh, and it's iMac, not iMAC. I don't know where people get the idea that it's all caps... Maybe it comes from being in a world where systems don't have names, but only serial numbers that are in all caps. Cases in point: Sony VAIO CR, INSPIRON 1720, 8710W, and the like.
 
aaronw1986 said:
It sounds like they are using 250GB though, and that would not be able to transfer in 2 minutes...
Click to expand...

This is what I was thinking as well. 250GB would take a while, even through Firewire.

OP, can you go to your iMac's HD on the desktop, right click, select "get info" and tell us the capacity and space available?
 
I was using only about 45 GB and it backed up to my 1TB Lacie drive with FW800 at lightning speed. I was suspicious at first. Course 45GB is not that much data, I'll grant you.
 
robanga said:
I was using only about 45 GB and it backed up to my 1TB Lacie drive with FW800 at lightning speed. I was suspicious at first. Course 45GB is not that much data, I'll grant you.
Click to expand...

Maybe so, but there is no way FW800 would do 250GB in 2 mins.
 
aaronw1986 said:
Maybe so, but there is no way FW800 would do 250GB in 2 mins.
Click to expand...

I think he means that he was backing up 45GB of data, not 250GB.

Even so, that seems quite fast. OP, I'd go back to your external and verify that it's all there.
 
CalBoy said:
I think he means that he was backing up 45GB of data, not 250GB.

Even so, that seems quite fast. OP, I'd go back to your external and verify that it's all there.
Click to expand...

I was referring to the OP not the person who said their 45GB backed up quickly.
 
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