Time Machine

Hi

I just puchased a second 1tb external hdd to use with time machine, but when i plug it in it wants to backup everything on my macbook pro - 480gb worth.

I know this is what its designed to do, but my first 1tb hdd which i used for time machine also currently has my latest backup on it and is now full.

Therefor how do I tell my second hdd to backup current files to date, since my last backup is on my first drive. Does this make sense. If so please help!

Ben.

Ben, Welcome to the Forum. Have a look at SuperDuper or Carbon Copy Cloner - both allow Smart Updates which may suit you better for your second drive.
Download SuperDuper! for Mac - Advanced disk cloning/recovery utility. MacUpdate Mac Software Downloads

+1one for both SD and CCC , but you should only need one drive for TM as it will delete the oldest back-ups when it gets full and needs more room there by just keeping the latest back-ups.

Clay