使用 Azure 门户为 Azure SQL 数据库弹性池配置故障转移组并测试故障转移。Configure a failover group for an Azure SQL Database elastic pool and test failover using the Azure portal.在本教程中，您将学习如何执行以下操作：In this tutorial, you will learn how to:
创建单一数据库。Create a single database.
将数据库添加到弹性池中。Add the database to an elastic pool.
在两个服务器之间创建两个弹性池的故障转移组。Create a failover group for two elastic pools between two servers.
测试故障转移。Test failover.
先决条件Prerequisites
若要完成本教程，请确保做好以下准备：To complete this tutorial, make sure you have:
在此步骤中，你将创建逻辑 SQL 服务器和使用 AdventureWorksLT 示例数据的单一数据库。In this step, you create a logical SQL server and a single database that uses AdventureWorksLT sample data.可以通过使用 Azure 门户菜单和屏幕，或通过使用 Azure CLI 或 PowerShell 脚本来创建数据库。You can create the database by using Azure portal menus and screens, or by using an Azure CLI or PowerShell script.
所有方法都包括设置服务器级防火墙规则，以允许用于访问服务器的计算机的公共 IP 地址。All the methods include setting up a server-level firewall rule to allow the public IP address of the computer you're using to access the server.有关创建服务器级防火墙规则的详细信息，请参阅创建服务器级防火墙。For more information about creating server-level firewall rules, see Create a server-level firewall.还可以设置数据库级防火墙规则。You can also set database-level firewall rules.请参阅创建数据库级防火墙规则。See Create a database-level firewall rule.
在搜索栏中，搜索并选择“SQL 数据库”。From the Search bar, search for and select SQL database.
选择“创建” 。Select Create.
在“创建 SQL 数据库”窗体的“基本信息”选项卡上的“项目详细信息”下，选择正确的 Azure订阅（如果尚未选择）。On the Basics tab of the Create SQL database form, under Project details, select the correct Azure Subscription if it isn't already selected.
在“资源组”下选择“新建”，输入“MyResourceGroup”，然后选择“确定” 。Under Resource group, select Create new, enter myResourceGroup, and select OK.
在“数据库详细信息”下，为“数据库名称”输入“mySampleDatabase”。Under Database details, for Database name enter mySampleDatabase.
对于“服务器”，选择“新建”，并按如下所示在“新服务器”窗体中填写信息：For Server, select Create new, and fill out the New server form as follows:
服务器名称：输入“mysqlserver”和一些字符以实现唯一性。Server name: Enter mysqlserver, and some characters for uniqueness.
服务器管理员登录名：输入“azureuser”。Server admin login: Enter azureuser.
密码：输入符合要求的密码，然后在“确认密码”字段中再次输入该密码。Password: Enter a password that meets requirements, and enter it again in the Confirm password field.
位置：单击下拉箭头并选择一个位置，例如“中国东部 2”。Location: Drop down and choose a location, such as China East 2.
选择“确定” 。Select OK.
请记录服务器管理员登录名和密码，以便可以登录服务器及其数据库。Record the server admin login and password so you can log in to the server and its databases.如果忘记了登录名或密码，那么在数据库创建之后，可在“SQL 服务器”页上获取登录名或重置密码。If you forget your login or password, you can get the login name or reset the password on the SQL server page after database creation.若要打开“SQL 服务器”页，请在数据库“概述”页上选择服务器名称 。To open the SQL server page, select the server name on the database Overview page.
在“计算 + 存储”下，若要重新配置默认值，请选择“配置数据库”。Under Compute + storage, if you want to reconfigure the defaults, select Configure database.
在“配置”页上，可以选择：On the Configure page, you can optionally:
将“计算层”从“预配”更改为“无服务器”。Change the Compute tier from Provisioned to Serverless.
查看并更改“Vcore”和“数据最大大小”设置 。Review and change the settings for vCores and Data max size.
选择“更改配置”来更改硬件代系。Select Change configuration to change the hardware generation.
进行更改后，请选择“应用”。After making any changes, select Apply.
在完成时选择“下一步:网络”。Select Next: Networking at the bottom of the page.
在“网络”选项卡上的“连接方法”下，选择“公共终结点”。On the Networking tab, under Connectivity method, select Public endpoint.
在“防火墙规则”下，将“添加当前客户端 IP 地址”设置为“是”。Under Firewall rules, set Add current client IP address to Yes.
在完成时选择“下一步:其他设置”。Select Next: Additional settings at the bottom of the page.
可以使用 Azure 命令行接口 (Azure CLI) 创建 Azure 资源组、服务器和单一数据库。You can create an Azure resource group, server, and single database using the Azure command-line interface (Azure CLI).在计算机上安装 Azure CLI。Install Azure CLI on your computer.
以下 Azure CLI 代码将创建用于访问服务器的资源组、服务器、单一数据库和服务器级 IP 防火墙规则。The following Azure CLI code creates a resource group, server, single database, and server-level IP firewall rule for access to the server.请确保记录生成的资源组和服务器名称，以便可以在以后管理这些资源。Make sure to record the generated resource group and server names, so you can manage these resources later.
#!/bin/bash
# Sign in to Azure and set execution context (if necessary)
az login
az account set --subscription <Subscription ID>
# Set the resource group name and location for your server
resourceGroupName=myResourceGroup-$RANDOM
location=chinaeast2
# Set an admin login and password for your database
adminlogin=azureuser
password=Azure1234567
# Set a server name that is unique to Azure DNS (<server_name>.database.chinacloudapi.cn)
servername=server-$RANDOM
# Set the ip address range that can access your database
startip=0.0.0.0
endip=0.0.0.0
# Create a resource group
az group create \
--name $resourceGroupName \
--location $location
# Create a server in the resource group
az sql server create \
--name $servername \
--resource-group $resourceGroupName \
--location $location \
--admin-user $adminlogin \
--admin-password $password
# Configure a server-level firewall rule for the server
az sql server firewall-rule create \
--resource-group $resourceGroupName \
--server $servername \
-n AllowYourIp \
--start-ip-address $startip \
--end-ip-address $endip
# Create a gen5 2 vCore database in the server
az sql db create \
--resource-group $resourceGroupName \
--server $servername \
--name mySampleDatabase \
--sample-name AdventureWorksLT \
--edition GeneralPurpose \
--family Gen5 \
--capacity 2 \
可以使用 Windows PowerShell 创建资源组、服务器和单一数据库。You can create a resource group, server, and single database using Windows PowerShell.如果不想使用 Azure Cloud Shell，请安装 Azure PowerShell 模块。If you don't want to use the Azure Cloud Shell, install the Azure PowerShell module.
备注
本文进行了更新，以便使用新的 Azure PowerShell Az 模块。This article has been updated to use the new Azure PowerShell Az module.你仍然可以使用 AzureRM 模块，至少在 2020 年 12 月之前，它将继续接收 bug 修补程序。You can still use the AzureRM module, which will continue to receive bug fixes until at least December 2020.若要详细了解新的 Az 模块和 AzureRM 兼容性，请参阅新 Azure Powershell Az 模块简介。To learn more about the new Az module and AzureRM compatibility, see Introducing the new Azure PowerShell Az module.有关 Az 模块安装说明，请参阅安装 Azure PowerShell。For Az module installation instructions, see Install Azure PowerShell.
以下 PowerShell 代码将创建用于访问服务器的 Azure 资源组、服务器、单一数据库和防火墙规则。The following PowerShell code creates an Azure resource group, server, single database, and firewall rule for access to the server.请确保记录生成的资源组和服务器名称，以便可以在以后管理这些资源。Make sure to record the generated resource group and server names, so you can manage these resources later.
# Set variables for your server and database
$subscriptionId = '<SubscriptionID>'
$resourceGroupName = "myResourceGroup-$(Get-Random)"
$location = "China East 2"
$adminLogin = "azureuser"
$password = "Azure1234567"
$serverName = "mysqlserver-$(Get-Random)"
$databaseName = "mySampleDatabase"
# The ip address range that you want to allow to access your server
$startIp = "0.0.0.0"
$endIp = "0.0.0.0"
# Show randomized variables
Write-host "Resource group name is" $resourceGroupName
Write-host "Server name is" $serverName
# Connect to Azure
Connect-AzAccount
# 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 server..."
$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))
$server
# Create a server firewall rule that allows access from the specified IP range
Write-host "Configuring firewall for primary server..."
$serverFirewallRule = New-AzSqlServerFirewallRule -ResourceGroupName $resourceGroupName `
-ServerName $serverName `
-FirewallRuleName "AllowedIPs" -StartIpAddress $startIp -EndIpAddress $endIp
$serverFirewallRule
# Create General Purpose Gen4 database with 1 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 2 `
-SampleName "AdventureWorksLT"
$database
前面的代码使用以下 PowerShell 命令：The preceding code uses these PowerShell cmdlets:
使用 Azure 门户创建弹性池。Create your elastic pool using the Azure portal.
在搜索框中键入 elastic pool，按 Enter，选择“SQL 弹性数据库池”图标，然后选择“创建”。 Type elastic pool in the search box, press enter, select the SQL Elastic database pool icon, and then select Create.
使用以下值配置弹性池：Configure your elastic pool with the following values:
名称：提供弹性池的唯一名称，例如 myElasticPool。Name: Provide a unique name for your elastic pool, such as myElasticPool.
订阅：从下拉列表中选择订阅。Subscription: Select your subscription from the drop-down.
ResourceGroup：从下拉菜单中选择在第 1 部分创建的资源组 myResourceGroup。ResourceGroup: Select myResourceGroup from the drop-down, the resource group you created in section 1.
服务器：从下拉菜单中选择在第 1 部分创建的服务器。Server: Select the server you created in section 1 from the drop-down.
计算 + 存储：选择“配置弹性池”以配置计算和存储，并将单一数据库添加到弹性池中。Compute + storage: Select Configure elastic pool to configure your compute, storage, and add your single database to your elastic pool.在“池设置”选项卡上，保留默认值“第 5 代”、2 个 vCore 和 32GB 存储。On the Pool Settings tab, leave the default of Gen5, with 2 vCores and 32gb.
在“配置”页上选择“数据库”选项卡，然后选择“添加数据库”。 On the Configure page, select the Databases tab, and then choose to Add database.选择在第 1 部分创建的数据库，然后选择“应用”将其添加到弹性池中。Choose the database you created in section 1 and then select Apply to add it to your elastic pool.再次选择“应用”以应用弹性池设置并关闭“配置”页。 Select Apply again to apply your elastic pool settings and close the Configure page.
选择“查看 + 创建”以检查弹性池设置，然后选择“创建”以创建弹性池。 Select Review + create to review your elastic pool settings and then select Create to create your elastic pool.
使用 PowerShell 创建弹性池和辅助服务器。Create your elastic pools and secondary server using PowerShell.
# Set variables for your server and database
# $subscriptionId = '<SubscriptionID>'
# $resourceGroupName = "myResourceGroup-$(Get-Random)"
# $location = "China East 2"
# $adminLogin = "azureuser"
# $password = "PWD27!"+(New-Guid).Guid
# $serverName = "mysqlserver-$(Get-Random)"
$poolName = "myElasticPool"
$databaseName = "mySampleDatabase"
$drLocation = "China North 2"
$drServerName = "mysqlsecondary-$(Get-Random)"
$failoverGroupName = "failovergrouptutorial-$(Get-Random)"
# 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 "DR Server name is" $drServerName
Write-host "Failover group name is" $failoverGroupName
# 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
本教程的此部分使用以下 PowerShell cmdlet：This portion of the tutorial uses the following PowerShell cmdlets:
设置数据库的属性，或将现有数据库移到弹性池中。Sets properties for a database, or moves an existing database into an elastic pool.
3 - 创建故障转移组3 - Create the failover group
此步骤在现有的服务器与另一区域中的新服务器之间创建一个故障转移组。In this step, you will create a failover group between an existing server and a new server in another region.然后，将弹性池添加到该故障转移组。Then add the elastic pool to the failover group.
使用 Azure 门户创建故障转移组。Create your failover group using the Azure portal.
在 Azure 门户的左侧菜单中选择“所有服务”，然后选择“SQL 弹性池”。Select All services in the left-hand menu of the Azure portal, then select SQL elastic pools.
选择在上一部分中创建的弹性池，例如 myElasticPool。Select the elastic pool created in the previous section, such as myElasticPool.
在“概述”窗格上，选择 服务器名称 下的服务器名称以打开服务器的设置。On the Overview pane, select the name of the server under Server name to open the settings for the server.
在“设置”窗格下选择“故障转移组”，然后选择“添加组”以创建新的故障转移组。 Select Failover groups under the Settings pane, and then select Add group to create a new failover group.
在“故障转移组”页上输入或选择以下值，然后选择“创建”： On the Failover Group page, enter or select the following values, and then select Create:
故障转移组名称：键入唯一的故障转移组名称，例如 failovergrouptutorial。Failover group name: Type in a unique failover group name, such as failovergrouptutorial.
辅助服务器：选择“配置所需设置”选项，然后选择“创建新服务器”。Secondary server: Select the option to configure required settings and then choose to Create a new server.或者，可以选择现有的服务器作为辅助服务器。Alternatively, you can choose an already-existing server as the secondary server.为新的辅助服务器输入以下值之后，选择“选择”。After entering the following values for your new secondary server, select Select.
服务器名称：键入辅助服务器的唯一名称，例如 mysqlsecondary。Server name: Type in a unique name for the secondary server, such as mysqlsecondary.
服务器管理员登录名：键入 azureuserServer admin login: Type azureuser
密码：键入符合密码要求的复杂密码。Password: Type a complex password that meets password requirements.
位置：从下拉列表中选择一个位置，例如“中国北部 2”。Location: Choose a location from the drop-down, such as China North 2.此位置不能与主服务器的位置相同。This location cannot be the same location as your primary server.
备注
服务器登录名和防火墙设置必须与主服务器相匹配。The server login and firewall settings must match that of your primary server.
选择“组中的数据库”，然后选择在第 2 部分创建的弹性池。Select Databases within the group then select the elastic pool you created in section 2.此时应会出现一条警告，提示你将在辅助服务器上创建弹性池。A warning should appear, prompting you to create an elastic pool on the secondary server.选择该警告，然后选择“确定”以在辅助服务器上创建弹性池。Select the warning, and then select OK to create the elastic pool on the secondary server.
选择“选择”以将弹性池设置应用到故障转移组，然后选择“创建”以创建故障转移组。 Select Select to apply your elastic pool settings to the failover group, and then select Create to create your failover group.将弹性池添加到故障转移组的操作会自动启动异地复制过程。Adding the elastic pool to the failover group will automatically start the geo-replication process.
使用 PowerShell 创建故障转移组。Create your failover group using PowerShell.
# Set variables for your server and database
# $subscriptionId = '<SubscriptionID>'
# $resourceGroupName = "myResourceGroup-$(Get-Random)"
# $location = "China East 2"
# $adminLogin = "azureuser"
# $password = "PWD27!"+(New-Guid).Guid
# $serverName = "mysqlserver-$(Get-Random)"
# $poolName = "myElasticPool"
# $databaseName = "mySampleDatabase"
# $drLocation = "China North 2"
# $drServerName = "mysqlsecondary-$(Get-Random)"
$failoverGroupName = "failovergrouptutorial-$(Get-Random)"
# Create a secondary server in the failover region
Write-host "Creating a secondary 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 server =" $drServerName
# Create a server firewall rule that allows access from the specified IP range
Write-host "Configuring firewall for secondary 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
本教程的此部分使用以下 PowerShell cmdlet：This portion of the tutorial uses the following PowerShell cmdlets:
此步骤将故障转移组故障转移到辅助服务器，然后使用 Azure 门户故障回复。In this step, you will fail your failover group over to the secondary server, and then fail back using the Azure portal.
选择在上一部分中创建的弹性池，例如 myElasticPool。Select the elastic pool created in the previous section, such as myElasticPool.
在 服务器名称 下选择服务器的名称以打开服务器的设置。Select the name of the server under Server name to open the settings for the server.
在“设置”窗格下选择“故障转移组”，然后选择在第 2 部分创建的故障转移组。 Select Failover groups under the Settings pane and then choose the failover group you created in section 2.
查看哪个服务器是主服务器，哪个服务器是辅助服务器。Review which server is primary, and which server is secondary.
在“任务”窗格中选择“故障转移”，以故障转移包含弹性池的故障转移组。Select Failover from the task pane to fail over your failover group containing your elastic pool.
在告知将会断开 TDS 会话连接的警告中选择“是”。Select Yes on the warning that notifies you that TDS sessions will be disconnected.
查看哪个服务器是主服务器，哪个服务器是辅助服务器。Review which server is primary, which server is secondary.如果故障转移成功，这两个服务器的角色应会交换。If failover succeeded, the two servers should have swapped roles.
再次选择“故障转移”，将故障转移组故障回复到原始设置。Select Failover again to fail the failover group back to the original settings.
使用 PowerShell 测试故障转移组的故障转移。Test failover of your failover group using PowerShell.
# Set variables for your server and database
# $subscriptionId = '<SubscriptionID>'
# $resourceGroupName = "myResourceGroup-$(Get-Random)"
# $location = "China East 2"
# $adminLogin = "azureuser"
# $password = "PWD27!"+(New-Guid).Guid
# $serverName = "mysqlserver-$(Get-Random)"
# $poolName = "myElasticPool"
# $databaseName = "mySampleDatabase"
# $drLocation = "China North 2"
# $drServerName = "mysqlsecondary-$(Get-Random)"
# $failoverGroupName = "failovergrouptutorial-$(Get-Random)"
# 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
将故障转移组故障转移到辅助服务器，然后使用 PowerShell 故障回复。Fail your failover group over to the secondary server, and then fail back using the PowerShell.
# Set variables for your server and database
# $subscriptionId = '<SubscriptionID>'
# $resourceGroupName = "myResourceGroup-$(Get-Random)"
# $location = "China East 2"
# $adminLogin = "azureuser"
# $password = "PWD27!"+(New-Guid).Guid
# $serverName = "mysqlserver-$(Get-Random)"
# $poolName = "myElasticPool"
# $databaseName = "mySampleDatabase"
# $drLocation = "China North 2"
# $drServerName = "mysqlsecondary-$(Get-Random)"
# $failoverGroupName = "failovergrouptutorial-$(Get-Random)"
# 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
本教程的此部分使用以下 PowerShell cmdlet：This portion of the tutorial uses the following PowerShell cmdlets:
选择“删除资源组”即可删除该资源组中的所有资源以及该组本身。Select Delete resource group to delete all the resources in the group, as well as the resource group itself.
在文本框中键入资源组的名称 myResourceGroup，然后选择“删除”以删除该资源组。Type the name of the resource group, myResourceGroup, in the textbox, and then select Delete to delete the resource group.
使用 PowerShell 清理资源。Clean up your resources using PowerShell.
# Set variables for your server and database
# $resourceGroupName = "myResourceGroup-$(Get-Random)"
# Clean up resources by removing the resource group
Write-host "Removing resource group..."
Remove-AzResourceGroup -ResourceGroupName $resourceGroupName
Write-host "Resource group removed =" $resourceGroupName
本教程的此部分使用以下 PowerShell cmdlet：This portion of the tutorial uses the following PowerShell cmdlet:
若要保留资源组但删除辅助数据库，请先将其从故障转移组中移除，然后再将其删除。If you want to keep the resource group but delete the secondary database, remove it from the failover group before deleting it.如果在从故障转移组中移除辅助数据库之前将其删除，则可能会导致不可预知的行为。Deleting a secondary database before it is removed from the failover group can cause unpredictable behavior.
没有适用于 Azure 门户的脚本。There are no scripts available for the Azure portal.
后续步骤Next steps
在本教程中，你已将一个 Azure SQL 数据库弹性池添加到故障转移组，并测试了故障转移。In this tutorial, you added an Azure SQL Database elastic pool to a failover group, and tested failover.你已了解如何：You learned how to:
创建单一数据库。Create a single database.
将数据库添加到弹性池中。Add the database into an elastic pool.
在两个服务器之间创建两个弹性池的故障转移组。Create a failover group for two elastic pools between two servers.
测试故障转移。Test failover.
转到下一教程，其中介绍了如何使用 DMS 进行迁移。Advance to the next tutorial on how to migrate using DMS.
Azure SQL 数据库
