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Migrating from Exchange 2003 to 2010? Don't forget to add email archiving! 

Added: 08/18/2011, Hits: 6,233, Rating: 0, Comments: 1, Votes: 0
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Migrating your email environment from Exchange 2003 to 2010 means you can start taking advantage of the myriad benefits of the new platform. 64bit architecture, large mailboxes, better security, more client support options, and personal email archiving are all improvements in Exchange 2010 that you will find greatly improve your email systemís performance and your usersí experience. Since there is no in place upgrade option for upgrading 2003 to 2010, you will be introducing new servers into your environment, and migrating users from their old 2003 mailbox server to their new 2010 mailbox server. With the prerequisites taken care of, and email archiving in place, your users will start appreciating the benefits of the new platform as soon as they log on.

Before introducing your first Exchange 2010 server, you will want to make sure your environment is ready. Exchange 2003 server must run SP2 and in native mode, your Active Directory domain and forest must both be in 2003 functional level, your schema must be extended and your domain(s) must be prepared.

Adding Exchange 2010 servers
You will be adding new Exchange 2010 servers to your existing Exchange organization, and migrating email from your 2003 server to the new mailbox servers. Exchange 2010 servers should be added in this order:
  1. Client Access Server role

  2. Hub Transport Server role

  3. Unified Messaging Server role (if you are using UM)

  4. Mailbox Server role

  5. Edge Server role (if you are going to use it instead of an existing anti-SPAM gateway or service)
If you have multiple Exchange sites, start with the Internet-facing site and then work your way into the other sites.

Add additional software
Before you go any further, itís time to add your backup agents, antivirus software, and email archiving solution to your new Exchange 2010 servers. Remember, Exchange 2010 is a 64bit platform and requires a 64bit operating system, so make sure your corporate antivirus software and backup agents support 64bit operating systems and are certified to work with Exchange. By adding email archiving software to Exchange now, before you begin to migrate mail from the 2003 servers, you will be ready to archive all email as it comes through the old system.

Replicate your data
With your 2010 servers in place, itís time to start migrating data from the old servers. Configure replication groups between the existing 2003 server and the corresponding 2010 server for each of your public folders. If you have a significant amount of data, this can take time measured in days, not hours, so be patient. Since the 2010 servers will probably have much more power and disk space than the 2003 servers, you may find yourself consolidating servers, setting replication between several 2003 mailbox servers and the same 2010 server. Remember that if you have Outlook 2003 clients, you will also want to make sure you replicate the Free/Busy data. Once all of this data is replicating, you can start to move mailboxes. Use the Exchange Management Console to move the first mailbox, ensure that the client can connect to it, and that mail can be sent between the migrated mailbox and one that hasnít been migrated yet. As long as that all checks out, you can start moving the rest of the mailboxes.

Decommission 2003
Donít be in a hurry to shut down your 2003 servers. Wait at least a week, and then confirm that all public folders are replicating correctly and all clients can connect to their mailboxes, send and receive email, view free/busy data for others, etc. Make sure that all email is being added to your email archiving solution, and import your usersí PST files to get all old mail into the archive. Consider using a script to scan local hard disks for PST files at logon, and scan your fileserver to find others. With email archiving in place there is no good reason to keep using PST files, and plenty of reasons not to.

With your new Exchange 2010 infrastructure in place, a solid email archiving solution protecting and storing all messages, the new Outlook Web Access and ActiveSync in place, and your users updated, your migration is complete. Enjoy a job well done!

About The Author:
This guest post was provided by Ed Fisher on behalf of GFI Software Ltd. GFI is a leading software developer that provides a single source for network administrators to address their network security, content security and messaging needs. More information: GFI email archiving.

All product and company names herein may be trademarks of their respective owners.

Comments (1)

Review By: DavidScott [10/04/2016]
Review Text: Exchange Server Recovery Software is a perfect tool for recovery of Exchange database from corrupt EDB files and then convert EDB file to PST format. With the help of this tool you can easily access your Exchange data and perfectly open EDB file into new PST format from all such Exchange version -5.0/5.5/2000/2003/2007/2010/2013. Read more :

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