exchange 2003 to 2013 migration

how to do exchange 2003 to 2013 migration
SM_exchangeAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
you will need to migrate to exchange 2007 or 2010 first
exchange 2013 setup halts if it detects a 2003 server so you will need to migrate off 2003 first before going to 2013; they cannot co-exist

you could also export user mailboxes to pst files, remove exchange 2003 then put in 2013 though it usually isn't a viable option due to downtime
Seth SimmonsSr. Systems AdministratorCommented:
i would suggest going through the documentation first since 2010 is very different from 2003

Install Exchange 2010 in an Existing Exchange 2003 Organization
https://technet.microsoft.com/en-us/library/dd638130%28v=exchg.141%29.aspx
Satya PathakLead Technical ConsultantCommented:
follow the below URL you may help you how to migrate exchange 2003 to 10 to 13
http://exchange-rocks.com/?cat=26
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bobluisCommented:
Alternatively, exporting to a PST and importing from a PST also works smoothly. In case if  you have public folders you will also need to export and import public folders with permissions and recreated e-mail addresses.
hecgomrecCommented:
As stated earlier, you can't jump from 2003 to 2013 in one step;  I'll recommend you to step on 2010 before you jump to 2013.

For the task I also recommend to take either a VM or an old box where you can run 64 bits OS (Server 2008 or 2012) with at least 8 GB of RAM and enough disk space to hold all your mailboxes and when you finally migrate to 2013 you can remove the 2010.  

This is not an easy task or a 2 days job, this process in all can take you up to 2 weeks as you need to make sure everything is ok from jump to jump.  Each upgrade (jump) will render your users without emails somehow at a certain point, this could be a few minutes or few hours depending on when you do it and how big their mailboxes are, specially when moving from 2003 to 2010.

Unless you have less than 25 users or there is no way to get the extra hardware, virtual or not I won't recommend the .PST export option but if you do have to go that path please consider:

1. You'll have to export everything on the current mailbox
2. You'll have to have access to the users .NK2 files in case you also upgrade to a newer outlook version
3. Exporting to .PST will take time, hard disk space and right after the export the user can no longer use the account until you finish the process of taking the info onto the new server (import=more time).

Now I will provide you with an easy to follow step-by-step; please read them before you proceed with the actual migration and yes!!!! you can use a 2010 Trial for the migration so there is no rush.... trial version can run 180 days before expiring.


Here are the links:

2003 to 2010:  http://www.petenetlive.com/KB/Article/0000234.htm

2010 to 2013:  http://www.petenetlive.com/KB/Article/0000788.htm   (read carefully this is a 3 part procedure)

Note:   Remember to read everything before you start.  Make sure you understand all new concepts for each version: autodiscover, certificates, transports, ports, services and roles, etc.

Good luck!

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Moreno JackCommented:
You cant go from 2003 to 2013 in Exchange. You must either go to 2007 or 2010 first for more check this: http://exchangeserverpro.com/upgrading-to-exchange-server-2013/

You can also take help from Microsoft guidance tool in the form of the Exchange Server Deployment Assistant. This Web-based portal asks questions based on an organization's Exchange plans and then provide you step-wise instructions: https://technet.microsoft.com/en-us/exdeploy2013/Checklist?state=2419-W-AAAAAAAAQAAAAAEAAAAAAAA~&startOver=True
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