Examples/EndToEndExample/6-ConfigureDAG.ps1
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<#
.EXAMPLE This example shows how to configure DAG. #> $ConfigurationData = @{ AllNodes = @( @{ #region Common Settings for 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 <# The location of the exported public certifcate which will be used to encrypt credentials during compilation. CertificateFile = 'C:\public-certificate.cer' #> #Thumbprint of the certificate being used for decrypting credentials Thumbprint = '39bef4b2e82599233154465323ebf96a12b60673' #endregion } #region Individual Node Settings #region DAG01 Nodes @{ NodeName = 'e15-1' Fqdn = 'e15-1.mikelab.local' Role = 'AdditionalDAGMember' DAGId = 'DAG01' CASId = 'Site1CAS' ServerNameInCsv = 'e15-1' } @{ NodeName = 'e15-2' Fqdn = 'e15-2.mikelab.local' Role = 'AdditionalDAGMember' DAGId = 'DAG01' CASId = 'Site1CAS' ServerNameInCsv = 'e15-2' } @{ NodeName = 'e15-3' Fqdn = 'e15-3.mikelab.local' Role = 'FirstDAGMember' DAGId = 'DAG01' CASId = 'Site2CAS' ServerNameInCsv = 'e15-3' } @{ NodeName = 'e15-4' Fqdn = 'e15-4.mikelab.local' Role = 'AdditionalDAGMember' DAGId = 'DAG01' CASId = 'Site2CAS' ServerNameInCsv = 'e15-4' } #endregion ); #region DAG Settings DAG01 = @( @{ DAGName = 'DAG01' AutoDagTotalNumberOfServers = 12 AutoDagDatabaseCopiesPerVolume = 4 DatabaseAvailabilityGroupIPAddresses = '192.168.1.31','192.168.2.31' WitnessServer = 'e14-1.mikelab.local' DbNameReplacements = @{"nn" = "01"} Thumbprint = "0079D0F68F44C7DA5252B4779F872F46DFAF0CBC" } ) #endregion #region CAS Settings #Settings that will apply to all CAS AllCAS = @( @{ ExternalNamespace = 'mail.mikelab.local' } ) #Settings that will apply only to Quincy CAS Site1CAS = @( @{ InternalNamespace = 'mail-site1.mikelab.local' AutoDiscoverSiteScope = 'Site1' InstantMessagingServerName = 'l15-1.mikelab.local' DefaultOAB = "Default Offline Address Book (Site1)" } ); #Settings that will apply only to Phoenix CAS Site2CAS = @( @{ InternalNamespace = 'mail-site2.mikelab.local' AutoDiscoverSiteScope = 'Site2' InstantMessagingServerName = 'l15-2.mikelab.local' DefaultOAB = "Default Offline Address Book (Site2)" } ); #endregion } Configuration Example { param ( [Parameter(Mandatory = $true)] [ValidateNotNullorEmpty()] [System.Management.Automation.PSCredential] $ExchangeAdminCredential ) #Import required DSC Modules Import-DscResource -Module xExchange #This first 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 = $false 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' } } #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' } } } |