Examples/CreateAndConfigureDAG/CreateAndConfigureDAG.ps1
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.EXAMPLE This example shows how to configure databases manually. #> $ConfigurationData = @{ AllNodes = @( #Settings under 'NodeName = *' apply to all nodes. @{ NodeName = '*' <# NOTE! THIS IS NOT RECOMMENDED IN PRODUCTION. This is added so that AppVeyor automatic tests can pass, otherwise the tests will fail on passwords being in plain text and not being encrypted. Because it is not possible to have a certificate in AppVeyor to encrypt the passwords we need to add the parameter 'PSDscAllowPlainTextPassword'. NOTE! THIS IS NOT RECOMMENDED IN PRODUCTION. See: http://blogs.msdn.com/b/powershell/archive/2014/01/31/want-to-secure-credentials-in-windows-powershell-desired-state-configuration.aspx #> PSDscAllowPlainTextPassword = $true }, #Individual target nodes are defined next @{ NodeName = 'e15-1' Role = 'FirstDAGMember' DAGId = 'DAG1' #Used to determine which DAG settings the servers should use. Corresponds to DAG1 hashtable entry below. } @{ NodeName = 'e15-2' Role = 'AdditionalDAGMember' DAGId = 'DAG1' } @{ NodeName = 'e15-3' Role = 'AdditionalDAGMember' DAGId = 'DAG1' } @{ NodeName = 'e15-4' Role = 'AdditionalDAGMember' DAGId = 'DAG1' } ); #Settings that are unique per DAG will go in separate hash table entries. DAG1 = @( @{ ###DAG Settings### DAGName = 'TestDAG1' AutoDagTotalNumberOfServers = 4 AutoDagDatabaseCopiesPerVolume = 2 DatabaseAvailabilityGroupIPAddresses = '192.168.1.99','192.168.2.99' WitnessServer = 'e14-1.contoso.local' #xDatabaseAvailabilityGroupNetwork params #New network params DAGNet1NetworkName = 'MapiNetwork' DAGNet1ReplicationEnabled = $false DAGNet1Subnets = '192.168.1.0/24','192.168.2.0/24' DAGNet2NetworkName = 'ReplNetwork' DAGNet2ReplicationEnabled = $true DAGNet2Subnets = '10.10.10.0/24','10.10.11.0/24' #Old network to remove OldNetworkName = 'MapiDagNetwork' } ); } Configuration Example { param ( [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] $ExchangeAdminCredential ) Import-DscResource -Module xExchange #This section only configures a single DAG node, the first member of the DAG. #The first member of the DAG will be responsible for DAG creation and maintaining its configuration Node $AllNodes.Where{$_.Role -eq 'FirstDAGMember'}.NodeName { $dagSettings = $ConfigurationData[$Node.DAGId] #Look up and retrieve the DAG settings for this node #Create the DAG xExchDatabaseAvailabilityGroup DAG { Name = $dagSettings.DAGName Credential = $ExchangeAdminCredential AutoDagTotalNumberOfServers = $dagSettings.AutoDagTotalNumberOfServers AutoDagDatabaseCopiesPerVolume = $dagSettings.AutoDagDatabaseCopiesPerVolume AutoDagDatabasesRootFolderPath = 'C:\ExchangeDatabases' AutoDagVolumesRootFolderPath = 'C:\ExchangeVolumes' DatacenterActivationMode = 'DagOnly' DatabaseAvailabilityGroupIPAddresses = $dagSettings.DatabaseAvailabilityGroupIPAddresses ManualDagNetworkConfiguration = $true ReplayLagManagerEnabled = $true SkipDagValidation = $true WitnessDirectory = 'C:\FSW' WitnessServer = $dagSettings.WitnessServer } #Add this server as member xExchDatabaseAvailabilityGroupMember DAGMember { MailboxServer = $Node.NodeName Credential = $ExchangeAdminCredential DAGName = $dagSettings.DAGName SkipDagValidation = $true DependsOn = '[xExchDatabaseAvailabilityGroup]DAG' } #Create two new DAG Networks xExchDatabaseAvailabilityGroupNetwork DAGNet1 { Name = $dagSettings.DAGNet1NetworkName Credential = $ExchangeAdminCredential DatabaseAvailabilityGroup = $dagSettings.DAGName Ensure = 'Present' ReplicationEnabled = $dagSettings.DAGNet1ReplicationEnabled Subnets = $dagSettings.DAGNet1Subnets DependsOn = '[xExchDatabaseAvailabilityGroupMember]DAGMember' #Can't do work on DAG networks until at least one member is in the DAG... } xExchDatabaseAvailabilityGroupNetwork DAGNet2 { Name = $dagSettings.DAGNet2NetworkName Credential = $ExchangeAdminCredential DatabaseAvailabilityGroup = $dagSettings.DAGName Ensure = 'Present' ReplicationEnabled = $dagSettings.DAGNet2ReplicationEnabled Subnets = $dagSettings.DAGNet2Subnets DependsOn = '[xExchDatabaseAvailabilityGroupMember]DAGMember' #Can't do work on DAG networks until at least one member is in the DAG... } #Remove the original DAG Network xExchDatabaseAvailabilityGroupNetwork DAGNetOld { Name = $dagSettings.OldNetworkName Credential = $ExchangeAdminCredential DatabaseAvailabilityGroup = $dagSettings.DAGName Ensure = 'Absent' DependsOn = '[xExchDatabaseAvailabilityGroupNetwork]DAGNet1','[xExchDatabaseAvailabilityGroupNetwork]DAGNet2' #Dont remove the old one until the new one is in place } } #Next we'll add the remaining nodes to the DAG Node $AllNodes.Where{$_.Role -eq 'AdditionalDAGMember'}.NodeName { $dagSettings = $ConfigurationData[$Node.DAGId] #Look up and retrieve the DAG settings for this node #Can't join until the DAG exists... xExchWaitForDAG WaitForDAG { Identity = $dagSettings.DAGName Credential = $ExchangeAdminCredential } xExchDatabaseAvailabilityGroupMember DAGMember { MailboxServer = $Node.NodeName Credential = $ExchangeAdminCredential DAGName = $dagSettings.DAGName SkipDagValidation = $true DependsOn = '[xExchWaitForDAG]WaitForDAG' } } } |