Upgrading Exchange 2003 to 2007

70 pts.
Tags:
Active Directory
ActiveSync
Exchange 2003
Exchange 2007
Exchange Server 2003 to Exchange Server 2007 Upgrade
Exchange upgrades
Upgrading Exchange
Can anyone provide tips, documentation, and/or lessons learned for a successful migration/upgrade path from Exchange 2003 to Exchange 2007 including any issues with Active Sync?
ASKED: April 7, 2009  2:34 PM
UPDATED: April 8, 2009  2:17 PM

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Here’s some of my blogs that discuss our Exchange 2007 implementation:

<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/certificates-who-do-you-trust/”>Certificates – who do YOU trust?</a>
<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/2000-users-new-mailboxes-one-weekend-done/”>2000 users – new mailboxes – one weekend – DONE!</a>
<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/did-you-see-this-need-some-exchange-advicesupport/”>Did you see this? – Need some Exchange advice/support</a>
<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/protocol-analysis-vs-protocol-analysis-with-a-small-p/”>PROTOCOL analysis vs protocol analysis (with a small p)</a>
<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/did-you-see-this-microsoft-exchange-online-evaluating-software-plus-services/”>Did you see this? – Microsoft Exchange Online – Evaluating Software-plus-Services</a>
<a href=”http://itknowledgeexchange.techtarget.com/it-trenches/did-you-see-this-microsoft-infrastructure-planning-design-guides/”>Did you see this? – Microsoft Infrastructure Planning & Design Guides</a>

Good luck in your upcoming implementation!

In the IT trenches? So am I – read my <a href=”http://itknowledgeexchange.techtarget.com/it-trenches”>IT-Trenches blog</a>

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Our migration went smoothly. Once we had Exchange 2007 up and running with storage groups and mailboxes created then moving the mailboxes was easy. Using the Exchange 2007 console I could schedule batch moves at night and check them in the morning. I had no failures. Just make sure you have planned well before you start and set mailbox size limits ummediately if you have not done so previously.
We sorted users out according to size and made storage group limits, moving people into the appropriate storage group depending on their position or mailbox size needs for business reasons only.
For us we have a script we use for creating new users and made it so new users by default are not enabled for active sync. They are enabled by default if you create them through the exchange console. We then disabled all users for active sync and re-enabled only those who were allowed. We do not support anyone syncing with personal devices. They have to have a company phone or special permission to sync their personal device. We heard a lot of crying of course, but once the policy was established everyone fell in line.
~ technochic

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  • Opnsrc
    I concur with Technochic's approach. Our organization did/does the same. Except: we do not put all larger size (or 'executive') mailboxes in one storage group. We spread them out among storage groups in case there is a problem with a SG you don't want all of the executives down at one time.
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  • Technochic
    Good point Troytate. To clarify we have CCR HA clusterered mailbox servers and our executives are large enough in number that we have several storage groups they are all "spread across", as well as multiple CCR Exchange mailbox servers. We are building the 3rd one now. True if one of those storage groups goes down a lot of execs would be affected, but so far the CCR configuration has prevented that from happening. And anyway we are only allowing 20 mailboxes per storage group in the 2 GB and 50 mailboxes per 1GB stores to keep the databases below 60GB as per best practice recommendations from Microsoft involving CCR servers.
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