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Planning to re-install a failing exchange 2007 server - advice needed

I have a failing exchange 2007 that has defied all attempts to resolve.

I plan to use re-install exchange 2007 and import the mailboxes.

Can anyone advise on good walk through for this.

Any comments and advice that would be helpful would be appreciated

What is the best practice for removing Exchange 2007 from the member server and keeping the mail database intact.
Do I need to make any changes on the DC/DNS servers before re-installing exchange
As I am re-installing Exchange do I just follow the normal installtion steps.
What is the best method for moving the mailboxes to the new Exchange database ( 15-20 mailboxes, 51GB total)

Would it be better to install onto a entirely new server - I have a Server 2008 machine I could use.  
 
Setup:
DC is on server 2003
exchange is on server 2008
15-20 users
small, simple setup for a small business

All comments appreciated

Paul
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zoltan9992000
Asked:
zoltan9992000
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1 Solution
 
Simon Butler (Sembee)ConsultantCommented:
This is easy.
Copy the database files off the server somewhere safe.
Then wipe the machine - don't drop from the domain or anything.
Reinstall Windows with the same name. RESET the AD computer account before you add it to the domain.
Then install Exchange 2007 on to the server from the command line with the recoverserver switch.
Once the installation is complete you should then be able to add the databases back in to the server. You might have to run a repair on them to get them to mount, but that is about all.
Basically a standard disaster recovery of the server.

Simon.
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zoltan9992000Author Commented:
Thanks Simon,

I'm very relieved to hear it's (relatively) simple

To elaborate a bit about the re-install:

I install/update Server 2008 - normal install -

Set name same as old name as per your instructions
 
Anything I need to add before I install exchange 2007 ?
IIS or .net etc?
Before I run exchange setup with the recover switch do I need to run it with any sort of "prepare" switch to check readiness  of the system for Exchange ?

Thanks

Paul
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zoltan9992000Author Commented:
Sorry Simon,

Another quick question

When you say add the databases would you use a dial tone database/recovery Storage Group or is there a better way ?

Regards,

Paul
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Simon Butler (Sembee)ConsultantCommented:
You are installing Exchange, so you need to install all of the prerequisites.
The only differences are

a. DO NOT DELETE THE COMPUTER ACCOUNT IN AD. Cannot stress that enough. Just reset it.
b. Install from the command line so you can use the additional switch.

On the database question - if you can lift the databases from the original server, then use those. In a recovery scenario that is what Exchange is expecting. Look for the recovery documentation on TechNet, that explains everything that you need to do.

Simon.
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zoltan9992000Author Commented:
Thanks  for the quick response Simon,
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