functions/Remove-DbaDbMirror.ps1
function Remove-DbaDbMirror { <# .SYNOPSIS Removes database mirrors. .DESCRIPTION Removes database mirrors. Does not set databases in recovery to recovered. .PARAMETER SqlInstance The target SQL Server instance or instances. This can be a collection and receive pipeline input to allow the function to be executed against multiple SQL Server instances. .PARAMETER SqlCredential Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential). Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported. For MFA support, please use Connect-DbaInstance. .PARAMETER Database The target database. .PARAMETER InputObject Allows piping from Get-DbaDatabase. .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 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: Mirroring, Mirror, HA Author: Chrissy LeMaire (@cl), netnerds.net dbatools PowerShell module (https://dbatools.io) Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Remove-DbaDbMirror .EXAMPLE PS C:\> Remove-DbaDbMirror -SqlInstance localhost -Database TestDB Stops the database mirroring session for the TestDB on the localhost instance. .EXAMPLE PS C:\> Remove-DbaDbMirror -SqlInstance localhost -Database TestDB1, TestDB2 Stops the database mirroring session for the TestDB1 and TestDB2 databases on the localhost instance. .EXAMPLE PS C:\> Get-DbaDatabase -SqlInstance localhost -Database TestDB1, TestDB2 | Remove-DbaDbMirror Stops the database mirroring session for the TestDB1 and TestDB2 databases on the localhost instance. #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')] param ( [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [string[]]$Database, [parameter(ValueFromPipeline)] [Microsoft.SqlServer.Management.Smo.Database[]]$InputObject, [switch]$EnableException ) process { if ((Test-Bound -ParameterName SqlInstance) -and (Test-Bound -Not -ParameterName Database)) { Stop-Function -Message "Database is required when SqlInstance is specified" return } foreach ($instance in $SqlInstance) { $InputObject += Get-DbaDatabase -SqlInstance $instance -SqlCredential $SqlCredential -Database $Database } foreach ($db in $InputObject) { if ($Pscmdlet.ShouldProcess($db.Parent.Name, "Turning off mirror for $db")) { # use t-sql cuz $db.Alter() does not always work against restoring dbs try { try { $db.ChangeMirroringState([Microsoft.SqlServer.Management.Smo.MirroringOption]::Off) $db.Alter() } catch { # The $db.Alter() command may both succeed and return an error code related to the mirror session being stopped. # Refresh the db state and if the mirror session is still active then run the ALTER statement. $db.Refresh() if ($db.IsMirroringEnabled) { try { $db.Parent.Query("ALTER DATABASE $db SET PARTNER OFF") } catch { Stop-Function -Message "Failure on $($db.Parent) for $db" -ErrorRecord $_ -Continue } } } [pscustomobject]@{ ComputerName = $db.ComputerName InstanceName = $db.InstanceName SqlInstance = $db.SqlInstance Database = $db.Name Status = "Removed" } } catch { Stop-Function -Message "Failure on $($db.Parent.Name)" -ErrorRecord $_ } } } } } # SIG # Begin signature block # MIIZewYJKoZIhvcNAQcCoIIZbDCCGWgCAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB # gjcCAQSgWzBZMDQGCisGAQQBgjcCAR4wJgIDAQAABBAfzDtgWUsITrck0sYpfvNR # 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