How to shutdown one exchange 2016 mailbox server in DAG

This is Parya 401 Reputation points

Hello everybody,
I have an exchange 2016 and a DAG, I have two exchange servers and 12 databases.
I want to shutdown one of the mailbox servers in the DAG which is exchange1
What I did for this:
First active the copy on exchange2.
delete the DNS records point to Exchange1 and I ran this comment: Get-MailboxDatabaseCopyStatus -Server exchange2 and the result was "mounted" and I test mapi connection and it was successful. and I ran Get-MailboxDatabaseCopyStatus -Server exchange1 and it was healthy.
But after shutdown the service didn't work and also the status of databasecopy was unknown.
Did I miss something?
what should I did step to step?

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,428 questions
{count} votes

Accepted answer
  1. Kael Yao-MSFT 37,586 Reputation points Microsoft Vendor

    To me the problem seems to be the DAG lost quorum, which caused the databases on exchange2 to be dismounted.
    It would happen if the witness server wasn't online or accessible in a two-node DAG.

    If you run this command in Powershell, would it show the witness server is online?



    1 person found this answer helpful.

0 additional answers

Sort by: Most helpful