As the subject states, I am looking to partition my external so I can use it as a time machine back up. I have a 2 tb hd, and I want to partition 512 gb of it where I can create my time machine back up. I tried to play around with disk utility, but I couldn't figure out how one might go about specifying the partition size and what not.
Any assistance with this would be greatly appreciated.
Ideally, if someone can provide step by step instructions on how to do this, I'd be much obliged.