Intel Mac :: Unable To "Erase" Using Disk Utility

Jun 9, 2012

My Time Machine quit BU for over 10 days and then it started to BU whole computer like it was an initial BU.  Previously it used 1.5TB of 2TBHD so tried to BU everything again.  I wasn't able to erase HD using Disk Utility so I changed the drive to a regular HD in Time Machine preferences and deleted data to trash.  Tried to Erase in Disk Utility and it says disk is unformatted and stops utility. How do I erase this HD?

Info:Mac OS X (10.7.2), Parallels, Win7, FoxFire, iPhone3GS

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Feb 27, 2010

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Dec 19, 2010

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Info:
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