Domino to Exchange migration

Lotus Domino
Microsoft Exchange
Does anybody know of a plan or an article I could be pointed to - to learn about how to devise a game plan to migrate from Domino 7.2 to Exchange 2007 as well as Lotus 7.2 to Outlook 2003? I am wondering if I am going to have to 'down' everybody's mail during the migration or could I have an instance of Domino and Exchange running on separate server boxes at the same time. If I could have them running along side each other I'm thinking I could gradually migrate user accounts over one at a time with some in-depth firewall rule manipulations. If anybody has any ideas please let me know.

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How many users?
Are you using any tool?

I am currently doing a domino/notes to e2k7.

We are thinking of a forklift, but with delta copies after taking our time doing the bulk.


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  • Scuba582
    We have about 100 users. The other guy I work with found a tool that Microsoft has put out for Notes to Outlook migration but I haven't had a chance to really talk to him about it.
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  • Wrobinson
    Depending on how much data is being migrated, if any at all (which is a possibility), you may decide to migrate all users at once, or use a phased approach. Using a phased approach requires a period of co-existence during which both messaging environments are operational, mail is routed, address book and calendar information synchronized between them. There are a lot of things to consider here, particularly around storage, such as whether or not existing e-mail will be archived prior to migration to reduce the amount of time it takes to migrate and use less expensive storage for the archived data. You also need to assess your existing Windows infrastructure. You probably already know that you will require all 64-bit server hardware and the 64-bit version of Windows Server 2003 or 2008. You will also want to look at offerings for migration such as the Microsof Transporter Suite for Lotus Domino, Quest Notes Migrator for Exchange, Binary Tree CMT Universal and so on. There will also be questions around Lotus Domino/Notes applications; if they are not being ported over to Web based, then you will need to maintain Domino and Notes for this purpose. This is but the tip of the iceburg. Check out the following URLs: You may also consider bringing in a consultancy to help you plan the migration and provide you with a plan that you can use execute internally.
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  • Wrobinson
    You really need to determine what your needs are in terms of migrating data from Lotus Domino to Exchange and work a plan from there. Unfortunately, the number of users is not really a factor of how easy or difficult the process is. Once you have a process, performing it for one user is just as simple for the sake of argument, as repeating it for 1,000. Once again, I encourage you to explore options for establishing as much a pristine environment, possible with the new infrastructure without destroying the lives of your users.
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