Navigate to the Default Global Address List object CNDefault Global Address List, CNAll Global Address Lists, CNAddress Lists Container, CNFirst Organization, CNMicrosoft Exchange, CNServices,CNConfiguration, DCDomain,DClocal 2. Go to the properties of the Default Global Address List object 3. You are here: Home / Tutorials / Exchange Server 2010 to 2013 Migration Reviewing Offline Address Book Configuration. This article is an excerpt from the. Exchange Server 2010 to 2013 Migration Guide. Before installing your first Exchange 2013 server during a migration project you must first. Ensure that administrators and system have full control and authenticated users have only read access. (leave the other permissions) - you can use this command to find out get-offlineaddressbook fl c:OAB_Version. txt 10. On the Exchange 2010 mailbox server, open Exchange Management Shell and enter the following cmdlet: Set-EventLogLevel MSExchangeSAOAL Generator -Level Expert After you hit enter you will not see any output that indicates that the logging level has been set. To examine the current diagnostics logging level for the MSExchangeSA service on the server LABMBX, use the following cmdlet: Get-EventLogLevel Identity LABMBXMSE xchangeSA With the specified Identity parameter, you can see that the server name is included in order to ensure that were setting the. To see which entries are affected, set event logging for the offline address list generator to at least medium. Following the advice in those events I turned up the diagnostic logging level for offline address list generation on that server. C:WindowsTemp and in Figure 7 you can see the OAB LZX files appearing in the TEMP folder during an update. Although these temporary files are cleaned up after the generation process has finished, there are a couple of scenarios where additional planning is required. Additionally, we have seen how to configure diagnostics logging for this process to allow us to troubleshoot issues. In part three, well start our look at the web-distribution method and specifically look at how the OAB data is transferred to the Client Access Server role. Public Root 2. NON_IPM_SUBTREE 3. OFFLINE ADDRESS BOOK 4. DN for OAB (for example, /oFourthcoffee/cnaddrlists/cnoabs/cnDefault Offline Address List ) 5. Double-click any of the following folders to see the messages within: OAB version 2 OAB version 3a OAB version 4 Web distribution - 1.