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Domain Controller Disk Failure

Okay I have a major problem.  My domain controller server just gave me an error.  It says there is a parameter that has exceeded its normal operating range.  Unfortunately, I can not access the drive to determine the parameter.  But the bigger problem is that this is the boot drive for my domain controller.  Unfortunately, since I had some other problems recently I had just taken my backup domain controller offline to reformat and repair.  All of my data (other than active directory and other domain info) is on my exchange/sql/fileserver  so I have not lost much data ( I hope).  Is there a way to repair this hard drive?  Should I spend the effort to try to recover from this drive, or should I work towards restoring to a new drive?  I  have on offsite backup service so I should have a fairly recent backup of that computer, should I instead try to get that info and restore to a new drive or machine?  And how do I do this?  Or should I create a new domain?  And if I do this, can I move my exchange infor to it?  How badly am I screwed?  I need this solved ASAP, please!
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aiasslug
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aiasslug
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victornegriCommented:
If it's just your domain controller, you can create a new computer, promote it to be a domain controller, go to directory services restore mode and do a restore from tape of your domain items. You (hopefully) shouldn't have to do any more than that. This is assuming you didn't create tons of users on your DC between the time you took the backup and the time the drive died.
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aiasslugAuthor Commented:
If I try to add a DC role it asks if this is a new domain or an existing domain.  If I choose existing domain it tries to access the active directory of the existing domain, and is therefore unable.  So should I create a new domain controller on a new domain?  When I restore will it override that new domain?  
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victornegriCommented:
Create a new domain with the same name as the old domain.
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