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  • Suggestions on 2003 -> 2007 Migration

    I plan on using existing hardware so I'll be formatting and installing Windows 2008 x64 and Exchange 2007.

    The server isn't that old.

    Dell PowerEdge 860
    Intel Pentium E2160
    80 GB SATA hdd - OS Volume
    500 GB External Raid 10, 250GB x 6 SATA hdd - Store Volume
    4GB Ram

    Anyway...

    I initially planned on backing up the existing 2003 store then restoring it into 2007 if possible. I searched Google for articles about migrating this way but found little to nothing. I don't think this is an option.

    Based on what I've read, the only way to transition or migrate requires the coexistence of 2003 and 2007. Then move all of the mailboxes to 2007 then decommission 2003 and upgrade your org - or create a new org and move all mailboxes to it and then remove your 2003 org.

    Wonder how I can do this while using existing hardware and not install Exchange 2003 elsewhere...

    Machine to VM? Load VM on another server and use the existing hardware to install everything then move the mailboxes or is there something easier?

    Suggestions are welcome.

    Thanks.
    Last edited by ahinson; 8th December 2008, 15:17.
    Andrew

    ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

  • #2
    Re: Suggestions on 2003 -> 2007 Migration

    Hi Andrew, How many mailboxes do you have? I assume this is a dedicated member server and you have no other Exchange servers involved?
    cheers
    Andy

    Please read this before you post:


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    • #3
      Re: Suggestions on 2003 -> 2007 Migration

      You cannot restore Exchange 2003 databases to Exchange 2007. Therefore the backup/restore method is out.

      There is no way to upgrade your existing server without additional hardware and/or an extended period of downtime, and high risk to your data.

      To use the existing hardware you would have to exmerge all data out to PST files, then remove Exchange completely from the domain. That would destroy all settings within Exchange, all email addresses etc, so you will need to document it.

      Then the Exchange server would have to be wiped and reinstalled with 64 bit Windows, Exchange installed and all user accounts mail enabled, groups established, permissions and settings etc put back in place.

      Then you could import the content again and hope that the export was fine and you don't have any corruption. You have no way of knowing if that was the case until you import the data.

      You will also see the amount of data you have in the stores go up, as you lose single instance storage.

      You will be down for a while, presuming that you can get everything up and running again, maybe a day, maybe more. Longer if you do not have any experience with Exchange 2007, as it is a different product to E2003, lots of things have changed.

      Or you could find something that has enough capacity to run Exchange 2003 and do the migration using the swing method. That is risk free, zero downtime and allows the migration to be done in a more controlled manner.

      The fact that you have mentioned a VM means you must have the capacity somewhere, so build a server and swing. It isn't exactly difficult. If you aren't sure then bring in a consultant to do it for you.

      I only do swing migrations, even if it means I have to bring my own hardware on to the site. I refuse to do anything that involves backup/restore as the risk is too high for data loss.

      Simon.
      --
      Simon Butler
      Exchange MVP

      Blog: http://blog.sembee.co.uk/
      More Exchange Content: http://exchange.sembee.info/
      Exchange Resources List: http://exbpa.com/
      In the UK? Hire me: http://www.sembee.co.uk/

      Sembee is a registered trademark, used here with permission.

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      • #4
        Re: Suggestions on 2003 -> 2007 Migration

        Originally posted by AndyJG247 View Post
        Hi Andrew, How many mailboxes do you have? I assume this is a dedicated member server and you have no other Exchange servers involved?
        Luckily not every user is mail enabled so it's not that many, last I checked it was around 550. Yes, it's a dedicated Exchange box and there are no other Exchange servers.
        Andrew

        ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

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        • #5
          Re: Suggestions on 2003 -> 2007 Migration

          Originally posted by Sembee View Post
          ..Or you could find something that has enough capacity to run Exchange 2003 and do the migration using the swing method. That is risk free, zero downtime and allows the migration to be done in a more controlled manner.

          The fact that you have mentioned a VM means you must have the capacity somewhere, so build a server and swing. It isn't exactly difficult. If you aren't sure then bring in a consultant to do it for you.

          I only do swing migrations, even if it means I have to bring my own hardware on to the site. I refuse to do anything that involves backup/restore as the risk is too high for data loss.

          Simon.
          Yeah I do have extra capacity. Being a software company we have extra test rigs I could commission for the task so the VM route is probably the best solution. The other option you described sounds like a complete nightmare.
          Last edited by ahinson; 8th December 2008, 15:17.
          Andrew

          ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

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          • #6
            Re: Suggestions on 2003 -> 2007 Migration

            Originally posted by ahinson View Post
            The other option you described sounds like a complete nightmare.
            That is why I refuse to do it that way. The risk is too high.

            Simon.
            --
            Simon Butler
            Exchange MVP

            Blog: http://blog.sembee.co.uk/
            More Exchange Content: http://exchange.sembee.info/
            Exchange Resources List: http://exbpa.com/
            In the UK? Hire me: http://www.sembee.co.uk/

            Sembee is a registered trademark, used here with permission.

            Comment

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