time machine problem/issue

[acrahm]

I have a 1tb external for time machine back up and have about 750 gb of stuff to back up. I was under the impression that when time machine backs up my stuff it will automatically delete the oldest backup to create room for the newer backup.

My problem is that i did a back up a couple weeks ago and then today i go to back up and it tells me back up failed only 718gb available for 740gb of stuff to back up

anyone have this problem? how can i fix it?

 

[laeeqhumam]

Solution

Mate, if the older data is of no use then delete it and backup the new one. Thats the only option available in this case.
How Time Machine Works Read the second paragraph here.