注意事項：
- 升級 Cumulative Update ，若是 DAG 架構，須先暫停 DAG
- DAG 內的 成員必須接連升級, 中間相隔不要超過一天
- 要用 CMD （run as administrator 權限） 執行，不然會有權限異常，或檔案更新失敗等異常現象
- 建議先做備份( Exchange & DC )，避免升級失敗
流程：
Prepare Active Directory and Domains：
Upgrade Cumulative Update 前製作業：
- Windows Updates 更新到最新版本
- ( 確認目前的 .NET Framework 是否符合需求 )
- https://docs.microsoft.com/en-us/exchange/plan-and-deploy/supportability-matrix?view=exchserver-2016
- Restart the server
- Exchange Server 進入 維護模式
- 關閉防毒軟體 服務
- 關閉備份軟體 服務
- 關閉其他軟體 服務 ( MMC、powershell 、監控 )
執行 Cumulative Update ：
- Setup.exe /IAcceptExchangeServerLicenseTerms /Mode:Upgrade [/DomainController:<ServerFQDN>] [/EnableErrorReporting]
- Restart the server
Cumulative Update 後製作業：
- 確認 event logs 是否有 錯誤 或 警告
- 確認 服務 是否都已啟動
- Exchange Server 離開 維護模式
- 檢查 Exchange 是否正常運作
Prepare Active Directory and Domains：
Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareSchema
Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAD
Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAllDomains
Upgrade Cumulative Update 前製作業：
Exchange Server 進入 維護模式
(請將 ExchangeServer 更改為 你的Exchange Server 電腦名稱，
ExchangeServer01 更改為 你的Exchange Server 電腦名稱，EXDAG01 更改為 DAG Cluster 名稱 )
## 1. Drain the mail queues on the server --將 Mail Queue 清空
Set-ServerComponentState -Identity ExchangeServer -Component HubTransport -State Draining -Requester Maintenance
## 2. Restart-Service
Restart-Service MSExchangeTransport
Restart-Service MSExchangeFrontEndTransport
## 3. Redirect pending messages to another Mailbox server.
Redirect-Message -Server ExchangeServer.coretronic.com -Target ExchangeServer01.coretronic.com
## 4. 有 DAG 的話，須先從 DAG 停用 Server
Suspend-ClusterNode ExchangeServer
## 5. Move all the active databases off of the server to another DAG member.
Set-MailboxServer ExchangeServer -DatabaseCopyActivationDisabledAndMoveNow $True
## 6. Look at the status of the database auto activation policy. Keep this handy. We will need this when we take the server out of maintenance mode.
Get-MailboxServer ExchangeServer | Select DatabaseCopyAutoActivationPolicy
## 7.Block the server from hosting active database copies
Set-MailboxServer ExchangeServer -DatabaseCopyAutoActivationPolicy Blocked
## 8. 確認目前狀態，是否可以進入 maintenance mode
Get-MailboxDatabaseCopyStatus -Server ExchangeServer | Where {$_.Status -eq "Mounted"}
Get-Queue
## 9. Place the server in maintenance mode.
Set-ServerComponentState ExchangeServer -Component ServerWideOffline -State Inactive -Requester Maintenance
## 確認目前狀態
Get-ServerComponentState ExchangeServer | Select Component, State
- 關閉防毒軟體 服務
- 關閉備份軟體 服務
- 關閉其他軟體 服務 ( MMC、powershell 、監控 )
執行 Cumulative Update
- Setup.exe /IAcceptExchangeServerLicenseTerms /Mode:Upgrade [/DomainController:<ServerFQDN>] [/EnableErrorReporting]
- Restart the server
Cumulative Update 後製作業：
- 確認 event logs 是否有 錯誤 或 警告
- 確認 服務 是否都已啟動
- Exchange Server 離開 維護模式
## 1. Take the server out of maintenance mode
Set-ServerComponentState ExchangeServer -Component ServerWideOffline -State
Active -Requester Maintenance
## 2. Unpause the DAG node
Resume-ClusterNode ExchangeServer
## 3. Set the server to allow database copy activation
Set-MailboxServer ExchangeServer -DatabaseCopyActivationDisabledAndMoveNow $False
## 4. Set the database auto activation policy back to its original setting
Set-MailboxServer ExchangeServer -DatabaseCopyAutoActivationPolicy Unrestricted
## 5. Set the hub transport component back to active to allow it to accept connections.
Set-ServerComponentState ExchangeServer -Component HubTransport -State Active -Requester Maintenance
## 6. MS recommends that the transport services be restarted to help this change get picked up immediately.
Restart-Service MSExchangeTransport
Restart-Service MSExchangeFrontEndTransport
## 7. If the server was a DAG member and you moved all the active copies off of the server, you can easily move them back based on mount preference by running the RedistributeActiveDatabases.ps1 script
cd $exscripts
.\RedistributeActiveDatabases.ps1 -DagName "EXDAG01" -BalanceDbsByActivationPreference -SkipMoveSuppressionChecks -Confirm:$false
- 檢查 Exchange 是否正常運作
Get-queue
Get-ClusterNode ExchangeServer
Get-ClusterNode
Test-ServiceHealth ExchangeServer
Get-ExchangeServer | Test-ServiceHealth
Test-MAPIConnectivity -Server ExchangeServer
Get-ExchangeServer | Test-MAPIConnectivity
Get-MailboxDatabaseCopyStatus -Server "ExchangeServer" | Sort Name | Select Name, Status, Contentindexstate
Get-MailboxDatabaseCopyStatus * | Sort Name | Select Name, Status, Contentindexstate
Test-ReplicationHealth -Server ExchangeServer
Get-DatabaseAvailabilityGroup | Select -ExpandProperty:Servers | Test-ReplicationHealth | Sort Name
Get-MailboxServer ExchangeServer | Select Name, DatabaseCopyAutoActivationPolicy
Get-MailboxServer | Select Name, DatabaseCopyAutoActivationPolicy
