functions/Get-DbaClusterNode.ps1
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function Get-DbaClusterNode { <# .SYNOPSIS Returns the node(s) of a SQL Cluster. .DESCRIPTION Returns the name of the current node(s) in the SQL Server cluster. If the -ActiveNode Parameter is passed it only returns the name of the Server currently hosting the clustered instance. .PARAMETER SqlInstance Specifies the SQL Server clustered instance to check. .PARAMETER SqlCredential Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use: $scred = Get-Credential, then pass $scred object to the -SourceSqlCredential parameter. Windows Authentication will be used if SqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user. .PARAMETER ActiveNode If this parameter is selected the cmdlet will only return the Active Node in the cluster. .PARAMETER Detailed Output all properties, will be deprecated in 1.0.0 release. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com) Copyright (C) 2016 Chrissy LeMaire License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Get-DbaClusterNode .EXAMPLE Get-DbaClusterNode -SqlInstance sqlcluster Returns all nodes in the cluster and details about each node. .EXAMPLE Get-DbaClusterNode -SqlInstance sqlcluster -ActiveNode Returns the name of the active node in the cluster #> param ( [parameter(Mandatory = $true, ValueFromPipeline = $true)] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter]$SqlInstance, [PSCredential]$SqlCredential, [switch]$ActiveNode, [switch]$Detailed, [alias('Silent')] [switch]$EnableException ) begin { Test-DbaDeprecation -DeprecatedOn 1.0.0 -Parameter Detailed Test-DbaDeprecation -DeprecatedOn 1.0.0 -Alias Get-DbaClusterActiveNode $server = Connect-SqlInstance -SqlInstance $SqlInstance -SqlCredential $SqlCredential -MinimumVersion 10 } process { if ($server.IsClustered -eq $false) { Stop-Function -Message "Not a clusterd instance." -Category ConnectionError -ErrorRecord $_ -Target $SqlInstance -Continue } # If the -ActiveNode switch is selected only the primary node is returned. if ($ActiveNode) { try{ $sql = "SELECT * FROM sys.dm_os_cluster_nodes where is_current_owner = 1" $datatable = $server.query($sql) [PSCustomObject]@{ ComputerName = $datatable.nodename InstanceName = $server.ServiceName SqlInstance = $server.DomainInstanceName Status = $datatable.Status StatusDescription = $datatable.StatusDescription CurrentOwner = $datatable.is_current_owner } | Select-DefaultView -Property ComputerName } catch{ Stop-Function -Message "Unable to query sys.dm_os_cluster_nodes on $server." -ErrorRecord $_ -Target $SqlInstance -Continue } } #Default Execution of this function else { try{ $sql = "SELECT * FROM sys.dm_os_cluster_nodes" $datatable = $server.query($sql) foreach($data in $datatable){ [PSCustomObject]@{ ComputerName = $data.nodename InstanceName = $server.ServiceName SqlInstance = $server.DomainInstanceName Status = $data.Status StatusDescription = $data.StatusDescription CurrentOwner = $data.is_current_owner } | Select-DefaultView -Property ComputerName, InstanceName, SqlInstance, StatusDescription, CurrentOwner } } catch{ Stop-Function -Message "Unable to query sys.dm_os_cluster_nodes on $server." -ErrorRecord $_ -Target $SqlInstance -Continue } } } } |