Need to move the exchange 2010 Witness server for my DAG

So make the changes via the emc and then run the command via the exchange mgmt. shell?

Through exchange EMC  not possible to move witness server.

Please refer below to link to resovle your issue.

http://social.technet.microsoft.com/Forums/exchange/en-US/7dd25088-962c-4bd8-8ff6-82047e303f63/move-witness-server


http://www.msexchange.org/kbase/ExchangeServerTips/ExchangeServer2010/HighAvailability/MoveFileShareWitnessFSW.html

I meant the Command line.. cannot change through EMC.
Just run that command, that is really all there is to it when changing the location of the witness server.

Now just make sure you have the other prerequisites ready before making this change.  

http://exchangeserverpro.com/configure-file-share-witness-exchange-2010-database-availability-group/

Ok what about this then for making the change via the EMC..
http://www.ntweekly.com/?p=1244

First please make sure the new server has the Exchange Trusted Subsystem added as a local administrator.

You should be able to change it in the EMC (at least on Exchange 2007 it was possible). Change the name of the new directory and new server.

Here is the PowerShell Command to do it :

Set-DatabaseAvailabilityGroup -Identity DAGname -WitnessServer servername.domain.com -WitnessDirectory c:\FSW

Also can this be done on the fly without affecting exchange and the dag?

Ok I ran the command via the exch mgmt. console, but it did not create the folder, which I have seen happen before, but it did make the switch,so I created the share after making the change. No I dont see any errors via the emc but I don't see any folders or files on the new witness server yet in the share.
Should I seen something there as of yet?

The folder shall created automatically if you successfully run the command. The default folder name is DAGFileShareWitnesses

Well the command ran but it had an error about access but I have the exch trusted subsystem added to the local administrators group of the new server.
After the error I checked the emc and it did make the change to the new servers and directory but it did not create it by itself..

If I run the following command, it does show it to be on the new witness server...
Get-DatabaseAvailabilityGroup -Identity abcdefgh | fl

What is the error message, post the screenshot

AG
WARNING: The Exchange Trusted Subsystem is not a member of the local Administrators group on specified witness server
tmkcmsns.
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
    + CategoryInfo          : NotSpecified: (0:Int32) [Set-DatabaseAvailabilityGroup], UnauthorizedAccessException
    + FullyQualifiedErrorId : EC1B050A,Microsoft.Exchange.Management.SystemConfigurationTasks.SetDatabaseAvailabilityGroup
 
But as I mentioned, it did move all to the new server except I had to create the folder on the witness server and make the share. This is a 2 node DAG

I guess since I am not getting any errors on the exchange server and that the emc shows the new server and the correct folder since I ran the command, from what I an seeing I can ignore the message about access denied. This looks like it is a bug with exchange 2010..
Would this be a correct assumption?

Run this command to verify everything looks good:

Get-DatabaseAvailabilityGroup -Identity DAG -Status | fl

I did run that earlier and it showed all was moved correct...

solved