functions/Disable-DbaAgHadr.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Disable-DbaAgHadr { <# .SYNOPSIS Disables the Hadr service setting on the specified SQL Server. .DESCRIPTION In order to build an AG a cluster has to be built and then the Hadr enabled for the SQL Server service. This function disables that feature for the SQL Server service. .PARAMETER SqlInstance The SQL Server that you're connecting to. .PARAMETER Credential Credential object used to connect to the Windows server itself as a different user .PARAMETER WhatIf Shows what would happen if the command were to run. No actions are actually performed. .PARAMETER Confirm Prompts you for confirmation before executing any changing operations within the command. .PARAMETER Force Will restart SQL Server and SQL Server Agent service to apply the change. .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: DisasterRecovery, AG, AvailabilityGroup Author: Shawn Melton (@wsmelton | http://blog.wsmelton.info) Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Disable-DbaAgHadr .EXAMPLE Disable-DbaAgHadr -SqlInstance sql2016 -Force Sets Hadr service to disabled for the instance sql2016, and restart the service to apply the change. .EXAMPLE Disable-DbaAgHadr -SqlInstance sql2012\dev1 -Force Sets Hadr service to disabled for the instance dev1 on sq2012, and restart the service to apply the change. #> [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = "High")] param ( [parameter(Mandatory = $true, ValueFromPipeline = $true)] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$Credential, [switch]$Force, [switch][Alias('Silent')]$EnableException ) process { $Enabled = 0 foreach ($instance in $SqlInstance) { $computer = $instance.ComputerName $instanceName = $instance.InstanceName $noChange = $false switch ($instance.InstanceName) { 'MSSQLSERVER' { $agentName = 'SQLSERVERAGENT' } default { $agentName = "SQLAgent`$$instanceName" } } try { Write-Message -Level Verbose -Message "Checking current Hadr setting for $computer" $computerFullName = (Resolve-DbaNetworkName -ComputerName $computer -Credential $Credential -EnableException).FullComputerName $currentState = Get-DbaAgHadr -SqlInstance $instance } catch { Stop-Function -Message "Failure to pull current state of Hadr setting on $computer" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue } $isHadrEnabled = $currentState.IsHadrEnabled Write-Message -Level InternalComment -Message "$instance Hadr current value: $isHadrEnabled" if ($isHadrEnabled -eq $false -and $Enabled -eq 0) { Write-Message -Level Warning -Message "Hadr is already disabled for instance: $($instance.FullName)" $noChange = $true continue } $sqlwmi = new-object ('Microsoft.SqlServer.Management.Smo.WMI.ManagedComputer') $computerFullName $sqlService = $sqlwmi.Services[$instanceName] if ($noChange -eq $false) { if ($PSCmdlet.ShouldProcess($instance, "Changing Hadr from $isHadrEnabled to $Enabled for $instance")) { $sqlService.ChangeHadrServiceSetting($Enabled) } if (Test-Bound 'Force') { if ($PSCmdlet.ShouldProcess($instance, "Force provided, restarting Engine and Agent service for $instance on $computerFullName")) { try { Stop-DbaSqlService -ComputerName $computerFullName -InstanceName $instanceName -Type Agent, Engine Start-DbaSqlService -ComputerName $computerFullName -InstanceName $instanceName -Type Agent, Engine } catch { Stop-Function -Message "Issue restarting $instance" -Target $instance -Continue } } } $newState = Get-DbaAgHadr -SqlInstance $instance -Credential $Credential [PSCustomObject]@{ ComputerName = $computerFullName InstanceName = $instanceName SqlInstance = $instance.FullSmoName HadrPrevious = $currentState.IsHadrEnabled HadrCurrent = $newState.IsHadrEnabled } } } # foreach instance } } |