使用 PowerShell 將彈性集區新增到容錯移轉群組

適用於：Azure SQL Database

此 Azure PowerShell 指令碼範例會在 Azure SQL 資料庫中建立資料庫、將其新增至彈性集區、建立容錯移轉群組，以及測試容錯移轉。

如果您沒有 Azure 訂用帳戶，請在開始之前先建立 Azure 免費帳戶。

注意

本文使用 Azure Az PowerShell 模組，這是與 Azure 互動時建議使用的 PowerShell 模組。 若要開始使用 Az PowerShell 模組，請參閱安裝 Azure PowerShell。 若要瞭解如何遷移至 Az PowerShell 模組，請參閱將 Azure PowerShell 從 AzureRM 遷移至 Az。

使用 Azure Cloud Shell

Azure Cloud Shell 是裝載於 Azure 中的互動式殼層環境，可在瀏覽器中使用。 您可以使用 Bash 或 PowerShell 搭配 Cloud Shell，與 Azure 服務共同使用。 您可以使用 Cloud Shell 預先安裝的命令，執行本文提到的程式碼，而不必在本機環境上安裝任何工具。

要啟動 Azure Cloud Shell：

選項	範例/連結
選取程式碼區塊右上角的 [試試看]。 選取 [試用] 並不會自動將程式碼複製到 Cloud Shell 中。
請前往 https://shell.azure.com，或選取 [啟動 Cloud Shell] 按鈕，在瀏覽器中開啟 Cloud Shell。
選取 Azure 入口網站右上方功能表列上的 [Cloud Shell] 按鈕。

若要在 Azure Cloud Shell 中執行本文中的程式碼：

1. 啟動 Cloud Shell。

2. 選取程式碼區塊上的 [複製] 按鈕，複製程式碼。

3. 透過在 Windows 和 Linux 上選取 Ctrl+Shift+V；或在 macOS 上選取 Cmd+Shift+V，將程式碼貼到 Cloud Shell 工作階段中。

4. 選取 Enter 鍵執行程式碼。

如果選擇在本機安裝並使用 PowerShell，此教學課程需要 Az PowerShell 1.4.0 或更新版本。 如果您需要升級，請參閱安裝 Azure PowerShell 模組。 如果您在本機執行 PowerShell，則也需要執行 Connect-AzAccount 以建立與 Azure 的連線。

範例指令碼

# Set variables for your server and database
$subscriptionId = '<Subscription-ID>'
$randomIdentifier = $(Get-Random)
$resourceGroupName = "myResourceGroup-$randomIdentifier"
$location = "East US"
$adminLogin = "azureuser"
$password = "PWD27!"+(New-Guid).Guid
$serverName = "mysqlserver-$randomIdentifier"
$poolName = "myElasticPool"
$databaseName = "mySampleDatabase"
$drLocation = "West US"
$drServerName = "mysqlsecondary-$randomIdentifier"
$failoverGroupName = "failovergrouptutorial-$randomIdentifier"


# The ip address range that you want to allow to access your server 
# Leaving at 0.0.0.0 will prevent outside-of-azure connections
$startIp = "0.0.0.0"
$endIp = "0.0.0.0"

# Show randomized variables
Write-host "Resource group name is" $resourceGroupName 
Write-host "Password is" $password  
Write-host "Server name is" $serverName 
Write-host "DR Server name is" $drServerName 
Write-host "Failover group name is" $failoverGroupName


# Set subscription ID
Set-AzContext -SubscriptionId $subscriptionId 

# Create a resource group
Write-host "Creating resource group..."
$resourceGroup = New-AzResourceGroup -Name $resourceGroupName -Location $location -Tag @{Owner="SQLDB-Samples"}
$resourceGroup

# Create a server with a system-wide unique server name
Write-host "Creating primary logical server..."
New-AzSqlServer -ResourceGroupName $resourceGroupName `
   -ServerName $serverName `
   -Location $location `
   -SqlAdministratorCredentials $(New-Object -TypeName System.Management.Automation.PSCredential `
   -ArgumentList $adminLogin, $(ConvertTo-SecureString -String $password -AsPlainText -Force))
Write-host "Primary logical server = " $serverName

# Create a server firewall rule that allows access from the specified IP range
Write-host "Configuring firewall for primary logical server..."
New-AzSqlServerFirewallRule -ResourceGroupName $resourceGroupName `
   -ServerName $serverName `
   -FirewallRuleName "AllowedIPs" -StartIpAddress $startIp -EndIpAddress $endIp
Write-host "Firewall configured" 

# Create General Purpose Gen5 database with 2 vCore
Write-host "Creating a gen5 2 vCore database..."
$database = New-AzSqlDatabase  -ResourceGroupName $resourceGroupName `
   -ServerName $serverName `
   -DatabaseName $databaseName `
   -Edition "GeneralPurpose" `
   -VCore 2 `
   -ComputeGeneration Gen5 `
   -MinimumCapacity 1 `
   -SampleName "AdventureWorksLT"
$database

# Create primary Gen5 elastic 2 vCore pool
Write-host "Creating elastic pool..."
$elasticPool = New-AzSqlElasticPool -ResourceGroupName $resourceGroupName `
    -ServerName $serverName `
    -ElasticPoolName $poolName `
    -Edition "GeneralPurpose" `
    -vCore 2 `
    -ComputeGeneration Gen5
$elasticPool

# Add single db into elastic pool
Write-host "Creating elastic pool..."
$addDatabase = Set-AzSqlDatabase -ResourceGroupName $resourceGroupName `
    -ServerName $serverName `
    -DatabaseName $databaseName `
    -ElasticPoolName $poolName
$addDatabase

# Create a secondary server in the failover region
Write-host "Creating a secondary logical server in the failover region..."
New-AzSqlServer -ResourceGroupName $resourceGroupName `
   -ServerName $drServerName `
   -Location $drLocation `
   -SqlAdministratorCredentials $(New-Object -TypeName System.Management.Automation.PSCredential `
      -ArgumentList $adminlogin, $(ConvertTo-SecureString -String $password -AsPlainText -Force))
Write-host "Secondary logical server =" $drServerName

# Create a server firewall rule that allows access from the specified IP range
Write-host "Configuring firewall for secondary logical server..."
New-AzSqlServerFirewallRule -ResourceGroupName $resourceGroupName `
   -ServerName $drServerName `
   -FirewallRuleName "AllowedIPs" -StartIpAddress $startIp -EndIpAddress $endIp
Write-host "Firewall configured" 

# Create secondary Gen5 elastic 2 vCore pool
Write-host "Creating secondary elastic pool..."
$elasticPool = New-AzSqlElasticPool -ResourceGroupName $resourceGroupName `
    -ServerName $drServerName `
    -ElasticPoolName $poolName `
    -Edition "GeneralPurpose" `
    -vCore 2 `
    -ComputeGeneration Gen5
$elasticPool


# Create a failover group between the servers
Write-host "Creating failover group..." 
New-AzSqlDatabaseFailoverGroup `
  –ResourceGroupName $resourceGroupName `
   -ServerName $serverName `
   -PartnerServerName $drServerName  `
   –FailoverGroupName $failoverGroupName `
   –FailoverPolicy Automatic `
   -GracePeriodWithDataLossHours 2
Write-host "Failover group created successfully." 

# Add elastic pool to the failover group
Write-host "Enumerating databases in elastic pool...." 
$FailoverGroup = Get-AzSqlDatabaseFailoverGroup `
                 -ResourceGroupName $resourceGroupName `
                 -ServerName $serverName `
                 -FailoverGroupName $failoverGroupName
$databases = Get-AzSqlElasticPoolDatabase `
               -ResourceGroupName $resourceGroupName `
               -ServerName $serverName `
               -ElasticPoolName $poolName
Write-host "Adding databases to failover group..." 
$failoverGroup = $failoverGroup | Add-AzSqlDatabaseToFailoverGroup `
                                  -Database $databases 
$failoverGroup

# Check role of secondary replica
Write-host "Confirming the secondary server is secondary...." 
(Get-AzSqlDatabaseFailoverGroup `
   -FailoverGroupName $failoverGroupName `
   -ResourceGroupName $resourceGroupName `
   -ServerName $drServerName).ReplicationRole

# Failover to secondary server
Write-host "Failing over failover group to the secondary..." 
Switch-AzSqlDatabaseFailoverGroup `
   -ResourceGroupName $resourceGroupName `
   -ServerName $drServerName `
   -FailoverGroupName $failoverGroupName
Write-host "Failover group failed over to" $drServerName 

# Check role of secondary replica
Write-host "Confirming the secondary server is now primary" 
(Get-AzSqlDatabaseFailoverGroup `
   -FailoverGroupName $failoverGroupName `
   -ResourceGroupName $resourceGroupName `
   -ServerName $drServerName).ReplicationRole

# Revert failover to primary server
Write-host "Failing over failover group to the primary...." 
Switch-AzSqlDatabaseFailoverGroup `
   -ResourceGroupName $resourceGroupName `
   -ServerName $serverName `
   -FailoverGroupName $failoverGroupName
Write-host "Failover group failed over to" $serverName 

# Clean up resources by removing the resource group
# Write-host "Removing resource group..."
# Remove-AzResourceGroup -ResourceGroupName $resourceGroupName
# Write-host "Resource group removed =" $resourceGroupName

清除部署

使用下列命令來移除資源群組及其所有相關聯的資源。

Remove-AzResourceGroup -ResourceGroupName $resourceGroupName

指令碼說明

此指令碼會使用下列命令。 下表中的每個命令都會連結至命令特定的文件。

Command	注意
New-AzResourceGroup	建立用來存放所有資源的資源群組。
New-AzSqlServer	建立裝載資料庫和彈性集區的伺服器。
New-AzSqlServerFirewallRule	為伺服器建立伺服器層級的防火牆規則。
New-AzSqlDatabase	建立新資料庫。
New-AzSqlElasticPool	建立彈性資料庫集區。
Set-AzSqlDatabase	設定資料庫的屬性，或將現有資料庫移到彈性集區中。
New-AzSqlDatabaseFailoverGroup	建立新的容錯移轉群組。
Get-AzSqlDatabase	取得一或多個資料庫。
Add-AzSqlDatabaseToFailoverGroup	將一或多個資料庫新增至容錯移轉群組。
Get-AzSqlDatabaseFailoverGroup	取得或列出資料庫容錯移轉群組。
Switch-AzSqlDatabaseFailoverGroup	執行資料庫容錯移轉群組的容錯移轉。
Remove-AzResourceGroup	移除資源群組

下一步

如需有關 Azure PowerShell 的詳細資訊，請參閱 Azure PowerShell 文件。

其他的 SQL Database PowerShell 指令碼範例可於 Azure SQL Database PowerShell 指令碼中找到。