What happens when TM hard drive gets full?
I am new to Time Machine. In fact, I just installed my new ext. hard drive that I have dedicated for the time machine and it ran the first backup consuming about 40 GBs. I know that each subsequent backup will only reflect any changes since the most recent backup, so they will be much smaller, but I am wondering what happens when the external hard drive is eventually full?
Does Time Machine cycle on itself and begin recording over the oldest data? or does it just open a window telling me that the disc is full? If that is the case, what do I do when the disc is full? Do I erase everything and start over? Or do I need to buy a new harddrive and store the original one forever? I would prefer to record over the oldest data if this is an option. My guess is that if I haven't needed something for the past year or so, then I probably don't need it.
Any insight would be appreciated,
Lincoln
iMac, Mac OS X (10.5.1), 2.4 GHz Core 2 Duo, 2 GB 667 MHz DDR2 SDRAM