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What is best practice to reboot Lync Front End Server?

How to stop new connection on Lync Server?

What is best practice to reboot Lync Front End Server?

How to gracefully stop Lync Server services?

As a Lync administrator we use to perform activities like Lync Cumulative Updates, Server reboots etc.
However in production environment we cannot simply reboot the server after patching or any other activity.
Because your Lync Front end server has many services running and concurrent calls, Concurrent conferences, current active call are there. So here is best practice to reboot server.
Suppose you completed your activity and want to reboot server.
Lync Server Reboot Best Practice Steps:
1.    Log on to Lync Frond End server using member of RTCUniversalServerAdmins group and if you are rebooting and stopping services on remote server then Local Admin group permission of that remote server.
2.    Open ‘Lync Server Management Shell’ and run command let


Result will show you active call, conference and connection details.


3.    There is no way to transfer current active connections however you can stop future connection to this front end server. Using ‘Graceful’ switch.

Now you can run Stop-CsWindowsServer command with Graceful switch so that it not allow new connection to this FE. 

Stop-CsWindowsService –Graceful

Also current Active call will not lose however new connection will allowed to this server.

Note: Wait until all Services get stop.

Do not reboot server when some services are in paused mode.

Now you can see status, how connection distributed in Lync pool using below command let:

Get-CsPoolFabricState -PoolFqdn ""

So you will get to know about this server connection status.

Assuming that no conference or user connected to this server. 

4.    Now you can reboot server. I use to reboot server through command prompt.

Shutdown /r /t 60 

5.    After Server restart wait for few minutes to start Lync services. Once all Services get started you can check the pool fabric state.

Get-CsPoolFabricState -PoolFqdn ""

Verify and move to another Front End server.


Thank you.


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