I got a new disk to use as a Time Machine. How can I unconvert my old disk?

I had a 250 GB portable hard drive I was using as my Time Machine Backups disk. When I filled that up, I bought a 1 TB hard drive. I've set up the 1 TB disk as my new Time Machine backups disk, but the 250 GB is still formatted as well. How can I unconvert the 250 GB to just be a normal portable hard drive?

Just re-frormat it with Disk Utility, choose your disk and then choose "Erase" tab (Mac OS X Extended Journaled)
-mj

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Hello there, jane_apple_user.
The following Knowledge Base article reviews the steps for how to add your iOS device to iTunes Match:
iTunes: How to add a computer or iOS device to iTunes Match
http://support.apple.com/kb/ht4913
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On your iOS device, go to Settings>Music.
Note: iTunes Match requires iOS 5.0.1 or later; you can find the latest iOS software here
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Important:
When enabling iTunes Match on your iOS device, the music library on your iOS device will be deleted and then replaced with your music in iCloud.
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By default, when adding an iOS device to iTunes Match, downloading over a cellular network is enabled1. To disable downloading over cellular for iTunes Match, choose Settings > Music > Use Cellular Data > Off.
Thanks for reaching out to Apple Support Communities.
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[email protected]
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Have you tried restarting or resetting your iPhone?
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http://support.apple.com/kb/HT5649
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I got a new disk to use as a Time Machine. How can I unconvert my old disk?

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