Need to evict a node in a DAG and re-add it

I have a server in my Exchange 2010 environment that is the passover node to my DAG. I have 3 nodes. Two of the nodes (one is the active and one is the passive) contain duplicate database copies. My passive node has gone down and the cluster service has disappeared on that machine. From what I'm gathering, the best way to get the cluster service back on that machine is to evict the node and re-add it. What I need to know is how is the best way to do that? Through Failover manager, or through the EMC GUI under Organization/Mailbox/Database Availability Groups. Any help would be greatly appreciated. Thanks!

-Roy
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Roy BeneVP/Director - IT | ISOAsked:
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Amit KumarCommented:
Just shutdown your corrupted node or format with fresh Windows, install all pre-requisites required for Mailbox server role. It will not make any downtime as you have another node running as active, but make sure you don't change anything on it and also take a complete good backup before doing anything.

Then recover this server with help of this article.

Note: You will have to re-sync all DB copies.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
Nothing is wrong with the server. The server is a VM, but it is currently the passive node in my DAG. The server itself is not corrupted, but the cluster node on it is. I just need to reinstall that. Nothing has changed on the server. Can I not just evict the node and re-add it? Do I need to delete all database copies and then resync, or can I just let the copies catch up?? Again, thank you in advance.

-R
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Amit KumarCommented:
Check if you get any result by cluster node, then you can remove faulty node from node by this command Cluster Node “FaultyServerName” /forcecleanup.

Then check failover cluster management feature is installed or not, if not install it and then add back this server manually in cluster. then check if you can see healthy state of this server in EMC.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
Amit,

I'm sorry but this article does not come anywhere close to addressing my issue. Please do not comment unless you read my issue. The ONLY thing down, once again, is the cluster service. The server is fine. There is nothing wrong with the server itself. The ONLY thing I need to do is to re-establish the cluster service on that box and I am not familiar with how to do that. I find it hard to believe I have to go through deleting all the db copies, etc. for just a cluster service. My question is 'can I evict the node and re-add the node into the DAG safely and with no issues? If so, HOW would I go about evicting the node. Through the EMC or through Failover manager?' THAT is my question.
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AmitIT ArchitectCommented:
I don't understand, if cluster service is down, how your server is fine. I gave you the correct way to recover failed server. You can wait for other EE to respond, might be someone else know better than me.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
The SERVER did not fail - that's my point. A service on the server failed. If the server is simply evicted and re-introduced to the cluster, will that not reinstall the cluster service????
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AmitIT ArchitectCommented:
I haven't seen any MS article, the way you are asking to recover the server. You can give a try. As it is already not in the mix.
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Amit KumarCommented:
Hi Roy,

Have you tried cluster node (Faulty one) forcecleanup as in my previous mentioned comment then re-configuring cluster service on faulty server.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
Here's a very strange thing. I recently found that this server has Windows Server 2k8 standard - not enterprise. How is it possible that it was a DAG member to begin with??? I went to go add the cluster service, and it wasn't listed as an option (because that is only an option in enterprise). It's a VM, but I've never seen that happen before?! I think perhaps the best option is to just build a new server, add it to the DAG, and clean up the old server database copies (remove them) through powershell. Then I can just let the DAG make database copies from scratch.

-Roy
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AmitIT ArchitectCommented:
That's what I am not clear your server doesn't have cluster service and how it is in DAG. You need enterprise edition windows to get cluster feature. Don't need to install separately, when add server to DAG, it automatically installs. Install new server with 2008 R2 enterprise edition and then exchange and finally add to DAG.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
I'm not clear either, but it was a DAG member. I don't understand that.
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AmitIT ArchitectCommented:
I might also check, if by mistake wrong server powered on with same name. Did you checked VM end properly.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
There is no other server by that name.
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AmitIT ArchitectCommented:
Run this command and see if that server show in the list.

Get-DatabaseAvailabilityGroup DAGNAME
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Roy BeneVP/Director - IT | ISOAuthor Commented:
Solved this issue myself by just rebuilding the server with correct procedures instead of trying to hash out the mess someone else created. Thanks.
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Roy BeneVP/Director - IT | ISOAuthor Commented:
Resolved the issue myself.
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