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Mailbox move for Migration to 2010 slow RRS feed

  • Question

  • Trying to move mailboxes from exchange 2007 to 2010.  It is taking a long time.  I can copy a normal file quickly to the Server.  Any suggestions? 
    Friday, September 21, 2012 5:34 PM

Answers

  • What takes a long time? Mailbox move request or access to the mailbox after move request is completed?

    If you cannot access your mailbox for a long time after mailbox is moved, you can try to restart AD Topology service at CAS Server on Exchange 2010. After move request is completed you have to access to the mailbox via OWA in a few moments, but MAPI takes about 30 minutes pause.

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Friday, September 21, 2012 5:59 PM
  • Hi

    As you said, you can copy a normal file quickly to the Server.

    So you can Export Mailbox from Exchange 2007 and then Import to Exchange 2010.

    For Export from EX07

    http://technet.microsoft.com/en-us/library/bb266964(v=exchg.80).aspx

    For Import to Ex10

    http://technet.microsoft.com/en-us/library/ff607310.aspx

    Hope that helps

    Cheers


    Zi Feng

    TechNet Community Support

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 9:01 AM
  • Great suggestions from others and another option to speed this up would be to do the following;

    1. Dismount the Exchange Databases

    2. Copy the databases to another location, i.e. to a member server etc.

    3. Rename the Exchange databases i.e. if Original name is Mailbox.edb, change to OLD_mailbox.edb

    4. Attempt to Mount the databases via Exchange Management and it will squawk saying the database files are missing and if you continue new blank databases will be created.  Say yes and new databases are created

    5. Once the new databases are created users can send and receive new emails, however historical emails will not yet be available.

    6. Now migrate the mailboxes which will go very quickly since all mailboxes are mostly empty.

    7. Now open the copy of the offline databases via a 3rd party product like DigiScope http://www.lucid8.com/product/digiscope.asp which will allow you to Browse, Search and Export Mailboxes, Folders and items to PST & MSG formats, OR in your case once the database was open via DigiScope you would just connect to the new production store and then Migrate/Import  the data direct from the offline Database files into the Production Server.

    NOTE:  If you want to avoid using a 3rd party product you could also do as Zi Feng suggested and export to PST first and then import to the production server.  That said if you use  the PST method you will need to address  LegacyExchangeDN issues and here is a bit more about that

    Here is a link that describes the issue  http://www.msexchange.org/tutorials/Understanding-LegacyExchangeDN.html , but in short POST moving of data from one domain to another there is an MS problem where imported messages calendar items/appointments made from the old system will  fail on acceptance, updates and other replies and modifications may not work right because the X500 addresses from the original Exchange server cannot resolve to the mailboxes in the new Exchange server.

     

    Here are some details about that problem and how to resolve. Basically, you need to obtain the LegacyExchangeDN from the old Exchange install to be added to the new recipients as an X500 format ProxyAddress entry. It's not too bad to do, once you know what to do but it can cause a major amount of frustration for the administrator and end users

    Microsoft also makes a LegacyExchangeDN tool http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=19034 The Tool is not really needed it just makes some of the change processes a bit easier than using ADSIEdit and the above first  article shows how to use this tool




    Troy Werelius
    www.Lucid8.com
    Search, Recover, & Extract Mailboxes, Folders, & Email Items from Offline EDB's and Live Exchange Servers or Import/Migrate direct from Offline EDB to Any Production Exchange Server, even cross version i.e. 2003 --> 2007 --> 2010 with Lucid8's DigiScope

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 3:29 PM
  • As Pavel said - you may need to increase the number of mailboxes that are being moved at the same time i.e. the number of move threads that are running simultaneously.

    Cheers, Steve

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 3:43 PM

All replies

  • What takes a long time? Mailbox move request or access to the mailbox after move request is completed?

    If you cannot access your mailbox for a long time after mailbox is moved, you can try to restart AD Topology service at CAS Server on Exchange 2010. After move request is completed you have to access to the mailbox via OWA in a few moments, but MAPI takes about 30 minutes pause.

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Friday, September 21, 2012 5:59 PM
  • The mailbox move is taking a long time.  I have 100 more mailboxes to move and it is moving at a snails pace. 

    Friday, September 21, 2012 6:07 PM
  • Friday, September 21, 2012 6:13 PM
  • Hi

    As you said, you can copy a normal file quickly to the Server.

    So you can Export Mailbox from Exchange 2007 and then Import to Exchange 2010.

    For Export from EX07

    http://technet.microsoft.com/en-us/library/bb266964(v=exchg.80).aspx

    For Import to Ex10

    http://technet.microsoft.com/en-us/library/ff607310.aspx

    Hope that helps

    Cheers


    Zi Feng

    TechNet Community Support

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 9:01 AM
  • Great suggestions from others and another option to speed this up would be to do the following;

    1. Dismount the Exchange Databases

    2. Copy the databases to another location, i.e. to a member server etc.

    3. Rename the Exchange databases i.e. if Original name is Mailbox.edb, change to OLD_mailbox.edb

    4. Attempt to Mount the databases via Exchange Management and it will squawk saying the database files are missing and if you continue new blank databases will be created.  Say yes and new databases are created

    5. Once the new databases are created users can send and receive new emails, however historical emails will not yet be available.

    6. Now migrate the mailboxes which will go very quickly since all mailboxes are mostly empty.

    7. Now open the copy of the offline databases via a 3rd party product like DigiScope http://www.lucid8.com/product/digiscope.asp which will allow you to Browse, Search and Export Mailboxes, Folders and items to PST & MSG formats, OR in your case once the database was open via DigiScope you would just connect to the new production store and then Migrate/Import  the data direct from the offline Database files into the Production Server.

    NOTE:  If you want to avoid using a 3rd party product you could also do as Zi Feng suggested and export to PST first and then import to the production server.  That said if you use  the PST method you will need to address  LegacyExchangeDN issues and here is a bit more about that

    Here is a link that describes the issue  http://www.msexchange.org/tutorials/Understanding-LegacyExchangeDN.html , but in short POST moving of data from one domain to another there is an MS problem where imported messages calendar items/appointments made from the old system will  fail on acceptance, updates and other replies and modifications may not work right because the X500 addresses from the original Exchange server cannot resolve to the mailboxes in the new Exchange server.

     

    Here are some details about that problem and how to resolve. Basically, you need to obtain the LegacyExchangeDN from the old Exchange install to be added to the new recipients as an X500 format ProxyAddress entry. It's not too bad to do, once you know what to do but it can cause a major amount of frustration for the administrator and end users

    Microsoft also makes a LegacyExchangeDN tool http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=19034 The Tool is not really needed it just makes some of the change processes a bit easier than using ADSIEdit and the above first  article shows how to use this tool




    Troy Werelius
    www.Lucid8.com
    Search, Recover, & Extract Mailboxes, Folders, & Email Items from Offline EDB's and Live Exchange Servers or Import/Migrate direct from Offline EDB to Any Production Exchange Server, even cross version i.e. 2003 --> 2007 --> 2010 with Lucid8's DigiScope

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 3:29 PM
  • As Pavel said - you may need to increase the number of mailboxes that are being moved at the same time i.e. the number of move threads that are running simultaneously.

    Cheers, Steve

    • Marked as answer by Zi Feng Monday, October 1, 2012 3:41 AM
    Monday, September 24, 2012 3:43 PM
  • They eventually came over.  Took longer than expected that is all.  Thanks for everyones input, very much appreciated. 
    Tuesday, September 25, 2012 2:30 PM
  • Hi

    Thanks for reply, you can mark as answer for those helpful post if possible in order to finish this thread

    Cheers


    Zi Feng

    TechNet Community Support


    • Edited by Zi Feng Wednesday, September 26, 2012 6:00 AM
    Wednesday, September 26, 2012 6:00 AM