Parallel Exchange 2010 Servers

Hello Exchange Experts -

We're currently running Exchange 2010 SP1 in a "hacked up, GAL segregation" kinda way (see this link).
With the new release of Exchange 2010 SP2, I'd like to move into the official MS way of handling GAL segregation. Here's my thought - I'd like to install Exchange 2010 SP2 in a clean configuration, then move all the mailboxes from our hacked up SP1 installation to the clean SP2 installation.

My questions:

1. Is it possible to have a "clean" Exchange 2010 SP2 server in the same domain as the SP1 server being that they'll share the same AD information?

2. If so, what process would you suggest to move the mailboxes over?

3. Any better ideas on how to do this?
LVL 3
jmichaelpalermo4Asked:
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Neil RussellTechnical Development LeadCommented:
As the GAL is "Global" then No you cant have a CLEAN SP2 in the same domain.
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jmichaelpalermo4Author Commented:
Neilsr - what approach would you take?
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Madan SharmaConsultantCommented:
As you have hacked up GAL and have modify you ad permissions also. So when you do install the exchange SP2 in the same domain It will pickup the same settings from ad and same GAL. But When we do upgrade from SP1 to SP2. We also need to run setup.com /PreapareAD else if we go with GUI the command runs itself to prepare the ad for SP2 and I believe when this will run on your DC it will make ad in the required(Default) state and you will be able to use ABP.

Note:- Its not tested by me So please test it on your test environment before applying it on the live setup.
Good Luck.
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jmichaelpalermo4Author Commented:
Akicute555 -

Thanks - I'll create a lab environment that mirrors production and just "go for it" on the SP2 upgrade to see how it affects the AD permissions/GAL.

Any other advise is always appreciated.
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Madan SharmaConsultantCommented:
ok please keep updating us...
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