functions/Test-DbaLinkedServerConnection.ps1
function Test-DbaLinkedServerConnection { <# .SYNOPSIS Test all linked servers from the sql servers passed .DESCRIPTION Test each linked server on the instance .PARAMETER SqlInstance The target SQL Server instance or 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 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: LinkedServer Author: Thomas LaRock ( https://thomaslarock.com ) Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Test-DbaLinkedServerConnection .EXAMPLE PS C:\> Test-DbaLinkedServerConnection -SqlInstance DEV01 Test all Linked Servers for the SQL Server instance DEV01 .EXAMPLE PS C:\> Test-DbaLinkedServerConnection -SqlInstance sql2016 | Out-File C:\temp\results.txt Test all Linked Servers for the SQL Server instance sql2016 and output results to file .EXAMPLE PS C:\> Test-DbaLinkedServerConnection -SqlInstance sql2016, sql2014, sql2012 Test all Linked Servers for the SQL Server instances sql2016, sql2014 and sql2012 .EXAMPLE PS C:\> $servers = "sql2016","sql2014","sql2012" PS C:\> $servers | Test-DbaLinkedServerConnection -SqlCredential sqladmin Test all Linked Servers for the SQL Server instances sql2016, sql2014 and sql2012 using SQL login credentials .EXAMPLE PS C:\> $servers = "sql2016","sql2014","sql2012" PS C:\> $servers | Get-DbaLinkedServer | Test-DbaLinkedServerConnection Test all Linked Servers for the SQL Server instances sql2016, sql2014 and sql2012 #> [CmdletBinding()] param ( [Parameter(Mandatory, ValueFromPipeline)] [DbaInstance[]]$SqlInstance, [PSCredential]$SqlCredential, [switch]$EnableException ) process { foreach ($instance in $SqlInstance) { if ($instance.LinkedLive) { $linkedServerCollection = $instance.LinkedServer } else { try { $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential } catch { Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue } $linkedServerCollection = $server.LinkedServers } foreach ($ls in $linkedServerCollection) { Write-Message -Level Verbose -Message "Testing linked server $($ls.name) on server $($ls.parent.name)" try { $null = $ls.TestConnection() $result = "Success" $connectivity = $true } catch { $result = $_.Exception.InnerException.InnerException.Message $connectivity = $false } New-Object Sqlcollaborative.Dbatools.Validation.LinkedServerResult($ls.parent.ComputerName, $ls.parent.ServiceName, $ls.parent.DomainInstanceName, $ls.Name, $ls.DataSource, $connectivity, $result) } } } } # 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