Exchange 2007 Migration to 2010 Question

Hello Experts,

I have a question.

I am planning to migrate from our current Exchange 2007 to 2010 the day after Christmas.

Our current Exchange is a Vsphere 5.1 virtual.
The new Exchange 2010 server is 2008 R2 Vsphere 5.1 Virtual as well.
We are currently running Exchange Server 2007 sp3 which this service pack, I understand did a lot of prep work to the schema for 2010.

My question is, the new server is up and I would like to go ahead and install Exchange 2010, get a lot of it configured so that I have time to test and see performance not just in exchange but on the vm itself with the rest of our environment which is mostly virtual.   I just won't change DNS, MX or any other records until I am ready to migrate and know that it's stable.

Is there any problem in preparing our schema this far in advance for 2010?  Will effect the functionality of our current 2007 exchange?  I originally planned for a co-existence so I am thinking there is not much problem with this but my boss does not want to do the full switch over yet until we know the server is stable and I now agree with this.

Please let me know your thoughts, I just want to make sure.

Thank you,

Karen
klsphotosAsked:
Who is Participating?
 
Will SzymkowskiSenior Solution ArchitectCommented:
There is no problem for this. You can safely introduce Exchange 2010 into your environment with no issues. Your Exchange 2007 server will still act as the "Primary" server in regards to all of the service EWS, OWA, Auto Discover, etc. When you are ready it is recommended to have Exchange 2010 set as the hold of these services and it will forward/proxy to the Exchagne 2007 mailboxes for these services like OWA and EWS.

Here is a great PDF from Exchange Server Pro which explains all steps for Exchange 2007 to 2010 migration...

http://www.google.ca/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=2&cad=rja&ved=0CD8QFjAB&url=http%3A%2F%2Fexchangeserverpro.com%2Fwp-content%2Fuploads%2FExchange%2520Server%25202007%2520to%25202010%2520Migration%2520Guide%2520V1.0%2520-%2520Planning%2520Chapter.pdf&ei=WF-GUsL_LeWV2QXq84HwBA&usg=AFQjCNHjpsqOa0NgK74lf0y4desfzFj3jw

Here is also another help link for Exchange migration to 2010.
http://www.networkworld.com/community/node/47778


Will.
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klsphotosAuthor Commented:
Thank you so much.  I just wanted to make sure and was really hoping I could work on getting everything configured and having them running side by side prior to making the switch and moving mailboxes.  I don't want to spend my whole Christmas vacation doing it :)
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