There are steps and sequence if you trying to install the
Update Rollups on the Mailbox Server which is DAG member. Below are the general
and detail steps
Installing Microsoft Exchange Server 2010 update rollups on
a server that is a member of a database availability group (DAG) is a
relatively straightforward process. When you install an update rollup on a
server that's a member of a DAG, several services are stopped during the
installation, including all Exchange services and the Cluster service. The
general process for applying update rollups to a DAG member is as follows:
- Use
the StartDagServerMaintenance.ps1 script to put the DAG member in
maintenance mode.
- Install
the update rollup.
- Use
the StopDagServerMaintenance.ps1 script to take the DAG member out of
maintenance mode and put it back into production.
- Use
the RedistributeActiveDatabases.ps1 script to rebalance the active
database copies across the DAG.
Detail steps 1 to 4 as below.
STEP 1:
Run the
StartDagServerMaintenance.ps1 script on the server being updated
Run the following command in the Exchange Management Shell
from the Scripts directory:
.\StartDagServerMaintenance.ps1
<ServerName>
STEP 2:
Install the update
rollup
1.
Close all Exchange management tools.
2.
Right-click the Exchange update rollup file
(.msp file) you downloaded, and then select Apply.
3.
On the Welcome page, click Next.
4.
On the License Terms page, review the license
terms, select I accept the License Terms, and then click Next.
5.
On the Completion page, click Finish.
STEP 3:
Run the
StopDagServerMaintenance.ps1 script
Run the following command in the Shell from the Scripts
directory:
.\StopDagServerMaintenance.ps1 <ServerName>
STEP 4:
Re-balance the
DAG, as needed
Run the following command in the Shell from the Scripts
directory to optionally balance the DAG by Activation Preference and to produce
a report when balancing is complete:
.\
RedistributeActiveDatabases.ps1 -DagName <DAGName> -BalanceDbsByActivationPreference
-ShowFinalDatabaseDistribution
