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Tien Ngo Thanh's avatar
Tien Ngo Thanh
Iron Contributor
May 03, 2019

How to shutdown all server exchange in site DC that not effect DAG

Hello

     we are planning for shutdown all server in DC  01 to maintain electronic .

      Current environment exchange server have

      - Active directory : only one site in both DC 01 and DC 02 (can call DR) and both site has active directory

      - 6 server mailbox (CAS+MBX) in DC and 3 server mailbox (CAS+MBX) in DR . all physical

      - all mailbox database has 1 copy in 3 server in DR

      - all server mailbox the same subnet in both site and the same site on active directory

      - one CAS server (for ECP admin) is VM current in DC and can migrate to DR manual 

       please help me the procedure how can shutdown all 6 server that DAG can normal and all database mount in DR

Best Regards,

Thanks

Exchange Server
  • Akshay_Mane's avatar
    Akshay_Mane
    Iron Contributor
    May 06, 2019

    Tien Ngo Thanh 

     

    In short, you need to remove all the dependencies before shutting down servers.

    - Removing HA (DAG), move all mailboxes to server that will be active

    - Move all Frontend settings to server that will be active

    - Make sure those servers are not meant to send out emails in sender connector

    - No DNS records present for those servers, like webmail, mail, autodiscover.

     

    Regards,

    Akshay

    Exchange Admin - Apps4Rent

    • Tien Ngo Thanh's avatar
      Tien Ngo Thanh
      Iron Contributor
      May 07, 2019

      Hello

          I just list some document and i think do that these step below

          the first time remove member server in F5 load balancing after that

             1. Check

      Get-MailboxDatabaseCopyStatus -Server MBXV01

      2. Active All Database to site dr

      3. Run Get-ClusterGroup  and   Move-ClusterGroup –cluster DAG –name “Cluster Group” –node MBXServerDR

      4. After that you could run to check

      Get-DatabaseAvailabilityGroup -Status -Identity DAG | fl name,primaryActiveManager

               5. Then, run Stop-DatabaseAvailabilityGroup -Identity DAG -MailboxServe MBX01 (for all mailbox in DC)

               

                6. Power off each of Exchange server in DC 

              Thanks

  • msExchangeDude's avatar
    msExchangeDude
    Icon for Microsoft rankMicrosoft
    May 03, 2019

    hello tien. what version of exchange are you running? from what it sounds like, you will want to run something like stop-databaseavailabilitygroup DAG01 -activedirectorysite "DC01", which will put the DC01 site servers in the stopped servers list when you run "get-databaseavailabilitygroup DAG01". Then you run a restore-databaseavailabilitygroup DAG01 to reform the DAG with only the DC02 site servers in the dag. for more information, search for "exchange datacenter switchover"

    • Tien Ngo Thanh's avatar
      Tien Ngo Thanh
      Iron Contributor
      May 03, 2019

      Current active directory is windows 2012 r2 and exchange is 2013 CU20

       

  • NunoAriasSilva's avatar
    NunoAriasSilva
    MVP
    May 03, 2019

    Hi Tien Ngo Thanh,

     

    The best practice is that you have 2 Active Directory Sites and in each AD Site you need to have at least a Global Catalog. If you have that you can shutdown on Datacenter and you you have Exchange with replica in place it will move that. You can also see the DAC mode on Exchange to see if is correct configuration within this scenario.

     

    When you startup an Exchange environment you will need at least on Global Catalog up in the AD site that the exchange nodes resides.

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