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Aug 9 2017

EDiscovery During Coexistence #coexistence, #during, #ediscovery


eDiscovery During Coexistence

This tips explains the requirements for eDiscovery during the transition from Exchange 2010 to 2013.

When transitioning from Exchange 2010 to 2013, you should be aware of the following in regarding to the eDiscovery feature during the coexistence period.

Administrator audit logs and metadata for eDiscovery searches (not search results) are stored in a system (arbitration) mailbox name SystemMailbox with the display name of Microsoft Exchange.

For eDiscovery to work during the period while Exchange 2010 and 2013 coexist (and after the transition), you need to move this system mailbox to an Exchange 2013 server. You can do this using the EAC or through PowerShell:

Get-Mailbox -Arbitration “SystemMailbox” | New-MoveRequest -TargetDatabase Exchange_2013_database

When the move finishes, to check if everything went OK, run the following cmdlet and ensure the Server and Database values refer to Exchange 2013:

Get-Mailbox -Arbitration SystemMailbox | FL ServerName, Database

If you do not move this system mailbox to Exchange 2013, the following issues will occur when Exchange 2010 and Exchange 2013 coexist in your Exchange organization:

  • Exchange 2013 tasks are not saved to the administrator audit log. When you run the Search-AdminAuditLog cmdlet or try to export the administrator audit log in the EAC, you will receive an error that says you cannot create an administrator audit log search because this system mailbox is located on a server that is not running Exchange 2013. A Microsoft Exchange error with an Event ID of 5000 is also logged in the Windows Application log each time a command is run;
  • You cannot run eDiscovery searches using the EAC or the Shell in Exchange 2013. Mailbox searches can be created and queued, but they cannot be started. An error with an Event ID of 6 is logged in the MsExchange Management log, stating that the Start-MailboxSearch cmdlet failed. However, you can search mailboxes using the Shell and the Exchange Control Panel in Exchange 2010.

See Also

The Author Nuno Mota

Nuno is an Exchange MVP working as a Senior Microsoft Messaging Consultant for a UK IT Services Provider in London. He specializes in Exchange, Lync, Active Directory and PowerShell.

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