Screencasts / Exchange 2019 / Upgrade Exchange 2013 to Exchange 2019
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Step3 We cover a lot of ground in this step. We start with checking the Exchange 2013 prerequisites and the Exchange Organization health. As you will see in this video, the Exchange HealthChecker.ps1 PowerShell script is extremely helpful in diagnosing issues that need to be fixed before we move further. Making sure that all mailboxes have a default OAB assigned is quite often missed and should be done as well. We document the existing configuration - mailbox storage quotas, namespaces, email routing topology, any custom connectors, and export the trusted Exchange SSL certificate.
Step4 In this step, we configure the new server for Exchange 2019 and prepare Active Directory and Domains. It is a good idea to extend the AD schema and prepare the AD domains in advance so you can catch earlier any underlying issues and resolve them before the actual Exchange 2019 installation. In addition, we configure dedicated volumes for the Exchange Databases and Log files using ReFS with the integrity streams feature disabled as recommended by Microsoft. Finally, we install the Exchange 2019 prerequisites.
Step5 This is where we perform the actual Exchange 2019 installation. Keeping an eye on the tasks that are happening in the background can turn out to be extremely helpful in case you hit any issues, and we show you how to start monitoring in real time the ExchangeSetup.log before you launch the Exchange Installation Wizard. When the installation completes, we pay special attention to the problem introduced with the additional Service Connection Point (SCP) that is added automatically to Active Directory during the Exchange 2019 installation, and that needs to be addressed ASAP.
Step6 In this step, we start with a validation of the Exchange 2019 installation. Then we move to the SCP issue – since Exchange 2019 uses a self-signed certificate, the Outlook clients that get the new SCP when querying Active Directory will get a certificate popup warning. To resolve the issue, we configure the Exchange 2019 internal and external virtual directories and the SCP based on the virtual directories namespaces that we have documented earlier in step 3. At the end, we import the Exchange trusted certificate to Exchange 2019.