Error: This computer is a member of a cluster. It must be removed from the database availablity group with the remove-DatabaseAvailabilityGroupServer task before uninstalling Exchange. Please help.Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

From the error message it sounds like the server you are trying to uninstall is part of DAG. Follow the link for instructions to remove the server from DAG. http://technet.microsoft.com/en-us/library/dd351278.aspx

Hi, You can only remove the server only after removing it from DAG. Once its done don't forget to remove the DatabaseCopy from the Database. http://technet.microsoft.com/en-us/library/dd298164.aspx Post the update.Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

Agree with Gulab and Murhty, You must remove server from DAG firt then can un-instal it. YOu can find below article which will give you right insight to remove a DAG member. How To Remove A Server From Microsoft Exchange 2010 DAG: http://www.ntweekly.com/?p=1276 Also See :: Unable to Remove Failed Server from DAG in Exchange Server 2010 http://exchangeserverpro.com/unable-remove-failed-server-dag-exchange-server-2010Anil MCC 2011,ITIL V3,MCSA 2003,MCTS 2010, My Blog : http://messagingschool.wordpress.com

All, this is what I got when I add Remove-DatabaseAvailabilityGroupServer -Identity DAG -MailboxServer EX The term 'Remove-DatabaseAvailabilityGroupServer' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:39 + Remove-DatabaseAvailabilityGroupServer <<<< -Identity DAG -MailboxServer EX + CategoryInfo : ObjectNotFound: (Remove-DatabaseAvailabilityGroupServer:String) [], CommandNotFoundExcep tion + FullyQualifiedErrorId : CommandNotFoundException So, am unable to remove the server, as it was only for testing. PLEASE HELP. Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Did you tried from EMC? Try from EMC and post the result.Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

What do you mean by EMC !!! and how to use it !!!Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Exchange Management Console.Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

It say: The following error occured when searching for on-premises exhange server: The world wide web piblishing service (w3svc) isn't running on any exchange servers in the site. If you want to connect to remote powershell, this service.................. Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Start world wide web piblishing service and than try.Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

The following error occured when searching for on-premises exhange server: EX Connecting to remote server failed with the following error message: The WinRM client recieved an http server error status (500), but remote service did not include any other information about the cause of the failure. For more information, see about_Remote_Troubleshooting help topic. It was running the command "discover-exchangeserver -useWIA$true-suppressError $true". Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Did you check this? http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/51b9f958-0ed4-45d4-a0f4-b853f0ade2e2 Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

Even from there, it's not working.Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

What is the error message you are getting now?Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

am not able to remove the mailbox :( and am 100% sure i have no mailboxesThanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Oh, Okay, so you are not able to remove the Mailbox Database.?Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

yes... :( Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

You can remove the database from Adsiedit.msc...>Configuration...>Services...>Microsoft Exchange...>ORG...>Administrative Group...>Exchange Administrative Group...>Database...<Delete the database you want> Post the update. Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

all what i have now is Hub Transport Role, and Mailbox Role, and each time I try to uninstall: Summary: 1 item(s). 0 succeeded, 1 failed. Elapsed time: 00:00:18 Mailbox Role Prerequisites Failed Error: This computer is a member of a cluster. It must be removed from the Database Availability Group with the Remove-DatabaseAvailabilityGroupServer task before uninstalling Exchange. Recommended Action: http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.4&id=22cdcab6-17f3-435a-a3a9-ec7dcb636608 Error: There was a problem accessing the registry on this computer. This may happen if the Remote Registry service is not running. It may also indicate a network problem or that the TCP/IP Netbios Helper service is not running. Elapsed Time: 00:00:18 .Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Gulab Mallah , can you please advice!!! what do you mean by Configuration..., where can i find it !Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Start this service "Remote Registry service" and try again.Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

same errr even after starting the service... :( Summary: 1 item(s). 0 succeeded, 1 failed. Elapsed time: 00:00:12 Mailbox Role Prerequisites Failed Error: This computer is a member of a cluster. It must be removed from the Database Availability Group with the Remove-DatabaseAvailabilityGroupServer task before uninstalling Exchange. Recommended Action: http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.4&id=22cdcab6-17f3-435a-a3a9-ec7dcb636608 Elapsed Time: 00:00:12 Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

If you starting adsiedit in windows server 2008 than by default you won't have it. Right click on adsiedit and Connect To,,,There would be 3 drop downs and one of them would be Default Naming Context...Click on the drop down and select Configuration. Remember, that you can remove DAG from Adsiedit, did you remove the server from the DAG?Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

I am sorry, but reading this thread, I feel I have to say somehing... Giving the advice to somebody that apparently doesn't know what he is doing right now, to delete databases using ADSIEdit was not the best recommendation I have read. My points: 'Remove-DatabaseAvailabilityGroupServer' is not recognized as the name of a cmdlet Tells us that Kheirallah does not have the right permission to perform this action, cause the cmdlet do exists kheirallah Wrote: What do you mean by EMC !!! and how to use it !!! ( kheirallah wrote: am not able to remove the mailbox :( (Where did this come from?) can you please advice!!! what do you mean by Configuration I hope none of you gets offended by my post! I have only good intentions with it. My point is that one should not poke with ADSIEdit lightly. Only when it´s really really necessary, which I do not think it is in this case. @kheirallah You should give us some more information about your Exchange Environement and also tell us the reason why you you started the uninstallation? Did you install it in the first place? :MartinaPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question.

I am sorry, but reading this thread, I feel I have to say somehing... Giving the advice to somebody that apparently doesn't know what he is doing right now, to delete databases using ADSIEdit was not the best recommendation I have read. I think you didn't read that "that you can remove DAG and Database from Adsiedit, did you remove the server from the DAG?" I know it's not best practice to delete DAG in adsiedit that's why i said You can.... And YES I know what i am doing.... I have done it several time in past it never caused any issue.... When you talk about the recommendation, than i would say I know the recommendation.... Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

You can remove the database from Adsiedit.msc...>Configuration...>Services...>Microsoft Exchange...>ORG...>Administrative Group...>Exchange Administrative Group...>Database...<Delete the database you want> IT's empty!!!!!!! how could this be !!!!! and for Miskovic, just want to tell you, when you arrive to an edge, you will ask for all the help you can get, am trying to remove this server since 2 months now, for no luck... so help, or keep silent please. :) Gulab is helping so thanks alot... :D And by the way, why should I tell you the reason of why I should I remove the server !!!!Thanks, Abdallah Kheirallah. System Administrator - Aspire Services.

Hi, Thanks for the update. If you don;t see the database in Adsiedit but you see it in EMC that meas it's not there in AD. But there is one more place we can check it. GO To...Active Directory Sites and Services...>View Manu Bar...Click on Services Node...(Here you will see the same thing what you saw in Adsiedit. Check if you see the Database. One question: You don't see any database at all in Adsiedit? Not even Public Folder Database? Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

I didn´t mean to offend you kheirallah or Gulab. I ment well with my post (even thou I can understand it did not come out that way) Kheirallay, Please make sure that you are a member of the group "Organization Management" or any equivalent custom role group, or an equivalent management role. If you are not, you will not be able to administer DAGs,Databases etc. You will not even see them in Exchange Management Console (EMC) or run the cmdlets in Exchange Management Shell (EMS) Reference: High Availability Permissions The term 'Remove-DatabaseAvailabilityGroupServer' is not recognized as the name of a cmdlet This can mean two things. Either you don´t have the right permission as specificed above, or you ran the command in Power Shell and not in EMS. To check for mailboxes on the server run both commands: get-mailbox -server SERVERNAME get-mailbox -Arbitration Check for mailboxdatabases in the DAG: Get-MailboxDatabaseCopyStatus -Server SERVERNAME Check for DAG Status Get-DatabaseAvailabilityGroup -status | fl :Martina Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question.

Hi Any update on the issue?Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

I had this same issue. My resolution was that I found the Cluster Service on the Windows server that was to have Exchange 2010 uninstalled was set to Automatic instead of Disabled from the DAG remove option. Once I set it to Disabled and Stopped my uninstall went fine. Hope this helps someone. Mike