![]() When the Active Directory changes have been applied, on each server run the upgrade. ![]() If you have a single domain, the previous step has already done this for you. Run setup.exe /PrepareDomain /IAcceptExchangeServerLicenseTerms in each domain in your forest that contains Exchange servers or mailboxes.Run setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms.Run setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms (requires Enterprise Admins and Schema Admins permissions, and must be performed in the same AD Site as the Schema Master on a server with the RSAT-ADDS-Tools feature installed – the Schema Master itself would meet these requirements).And if you’re running the update from an Exchange server, the RSAT-ADDS feature must be installed.īefore applying the schema update follow the steps provided by Michael B Smith to retrieve the existing Exchange schema version, so that you can compare it before and after the AD preparation steps have been completed to verify that the schema update was applied. In either case, Enterprise Admins and Schema Admins rights will be required. The AD preparation tasks can be run in advance of your server upgrades, or they can be allowed to run automatically as part of the first server upgrade process. So as a general rule you should plan for AD schema changes and updates to occur. In some cases, the existence of changes will depend on which previous CU you’re upgrading from. Most cumulative updates will include Active Directory schema changes, as well as other updates such as changed to RBAC roles. Perform a health check of the environment.Īctive Directory Schema Changes and Updates.Rebalance database availability groups.Take the server out of maintenance mode.Place the server into maintenance mode.You do not need to repeat this for each server being upgraded. This is performed once for the entire Active Directory environment. Perform the Active Directory schema changes and updates.The process for installation is as follows: Deploying Exchange 2016 Cumulative Updates As a rule of thumb, aim for “days or weeks” rather than “months” between server upgrades, depending on the size of your environment. waiting for issues to arise on the first upgraded server before deploying to the other servers. You can balance that recommendation with the need for caution, e.g. This is expected, and supported, but you should plan to continue upgrading servers so that they are all updated within a reasonable period of time. Edge Transport servers can be updated lastįor load-balanced servers and Exchange 2016 DAG members, there will be a period of time during which all servers are not at the same version.Order of Installation of Exchange 2016 UpdatesĬumulative updates for Exchange 2016 should be installed in the internet-facing site first, before installing in other sites in the organization. ![]() ![]()
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