Moving a SharePoint 2010 Host Header Site Collection to a new server in a new domain.

This example describes how to move a SharePoint 2010 Host Header (HHURL) site collection from a server in domaina to a new server in domainb. The example also deals with migrating users within the HHURL site collection from domaina to domainb.

The existing HHURL site collection is http://existing.domaina.com currently on hosta and Content Database is existingDB.
Create a new HHURL site collection on http://mynewsc.mydomainb.com on hostb and Content Database is mynewscDB.
Ensure your DNS record for the new HHURL site collection is mapped correctly i.e. you can get to it from the outside world.
Login to the new site collection and verify.
Backup the existing site collection http://existing.mydomaina.com on hosta to scbackup.bak file using Central Admin > Backup & Restore > Granular Backup > Perform a Site Collection Backup.

Restore the existing site collection backup (scbackup.bak) file from hosta to the http://mynewsc.mydomainb.com site collection on hostb using the following Powershell cmdlet.

PS C:\> Restore-SPSite http://mynewsc.mydomainb.com -Path C:\scbackup.bak -ContentDatabase mynewscDB -Force -HostHeaderWebApplication http://hostb
***Note http://hostb is the Web App under which the site collection http://mynewsc.mydomainb.com lives ***.
In Central Admin > Application Management > Site Collections > Change Site Collection Administrators; change the site collection administrator to domainb\spadminaccountb on the site collection http://mynewsc.mydomainb.com .
Add domainb\spadminaccountb to the site as an administrator using the New-SPUser cmdlet.
PS C:\> New-SPUser -UserAlias ‘domainb\spadminaccountb’ -Web http://mynewsc.mydomainb.com -DisplayName ‘spadminaccountb’ -SiteCollectionAdmin .
Do an IISRESET (Important !!).
Browse to your new site collection http://mynewsc.mydomainb.com , login as the spadminaccountb user and you’ll see content from the ‘old’ location http://existing.mydomaina.com . You should still see the users listed against content submissions from the old domain e.g. domaina\spadminaccounta .
Users in the new collection can be updated as follows using Powershell cmdlets:
PS C:\> $user=Get-SPUser -Web http://http://mynewsc.mydomainb.com -Identity DOMAINA\usera
PS C:\> Move-SPUser -Identity $user -NewAlias DOMAINB\userb -IgnoreSID
Have a look at the users on the site collection and you’ll see that the Identity (DOMAIN\user) has changed but the alias (user) remains the same, you’ll only notice this if the actual usernames are different in each domain.
Now update the DisplayName using Powershell cmdlets:
PS C:\> $user=Get-SPUser -Web http://http://mynewsc.mydomainb.com -Identity DOMAINB\user1
PS C:\> Set-SPUser -Identity $user -displayname userb

That’s it, I still have to test workflows, custom code deployments, etc … post migration; but this example should be enough for a lot of people using OOTB SharePoint.

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3 Comments »

  1. ShareBB said

    Good Post. It works!

  2. Bob said

    Some basic questions:
    Are domainA and domainB in the same forest ?
    Do I have to migrate user accounts (admt) from domainA to domainB before moving sharepoint site ?

    • lukieb said

      Bob, domainA & domainB were in different forests.
      I did not migrate users between domains, but I had set users up in the new domain (domainB) with the same usernames as domainA.
      HTH.
      L

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