手動容錯移轉

Microsoft.SQLServer.2012.AlwaysOn.ManualFailoverForAvailabilityReplica (ConsoleTask)

開啟 SQLPS 主控台並容錯移轉至目標可用性複本，讓此複本成為可用性群組的新主要複本。

Element properties:

Source Code:

<ConsoleTask ID="Microsoft.SQLServer.2012.AlwaysOn.ManualFailoverForAvailabilityReplica" Accessibility="Internal" Target="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplica" RequireOutput="false" Category="MonitoringObject">

  <Application>powershell.exe</Application>

  <Parameters>

    <Parameter>-Version 2 -NoExit -NoLogo -NoProfile -Command Invoke-Command {$l = 0;$ag='$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplica"]/AvailabilityGroupName$';

          $l = 0;$serverName = '$Target/Property[Type="System!System.Entity"]/DisplayName$';

          $l = 0;$dbReplicaName = ([regex]::Replace('$Target/Property[Type="System!System.Entity"]/DisplayName$', '\\', '%5C'));

          #AlwaysOnCommon.ps1



#

# Get FQDN of machine in current domain as we assume that all replicas in the same domain

# If IP address is provided the host name is resolved via DNS 

#

function Get-FQDN {

	param ([string]$name = $(throw "Name is required parameter."))

	

	# return FQDN

	return [System.Net.Dns]::GetHostByName($name).HostName

}



function ImportModuleActionSqlModules($arAssemblies){

	$paths = @( 

		(get-itemproperty -path "hklm:\Software\Microsoft\Microsoft SQL Server\110\Tools\ClientSetup\" | Select SQLPath).SQLPath ,

		(get-itemproperty -path "hklm:\Software\Wow6432Node\Microsoft\Microsoft SQL Server\110\Tools\ClientSetup\" | Select SQLPath).SQLPath )

	

	if (!(ImportSQLModules $arAssemblies $paths "110\Tools"))	{

	    Import-Module SQLPS -ErrorAction SilentlyContinue -WarningAction SilentlyContinue | Out-Null

	    if(!(IsModuleLoaded "SQLPS"))

	    {

	        throw "Unable to load SQLPS modules"

	    }

	}

}



function IsModuleLoaded([string]$include) { 

    $modules = Get-Module

    foreach($module in $modules){

		if($module.Name.Contains($include))	{

		    return $true

		}

    }

    return $false

}



function ImportSQLModules {  

    param (

		$arAssemblies,

		$paths,

		[string]$include)   



    $flRet = $false

    foreach($path in $paths){ 

        if($path.Contains($include)){

            foreach($assemblyName in $arAssemblies){

                $filename = $path + $assemblyName

				if(Test-Path $filename){

					Import-Module $filename -ErrorAction SilentlyContinue -WarningAction SilentlyContinue | Out-Null

					$flRet = $true;

				}

            }

        }

    }	

    return $flRet

}



#AlwaysOnTaskCommon.ps1



#Depends on:

# AlwaysOnCommon.ps1



$arAssemblies = @(,'\PowerShell\Modules\SQLPS\SQLPS.psd1');

ImportModuleActionSqlModules $arAssemblies



function p{ 

	param($v)

 	if ($v -ilike '*\*') { return $v } else { return '{0}\DEFAULT' -f $v } 

}



 

          $rp = ('{0}' -f (p($serverName)));

          cd ('sqlserver:\SQL\{0}\AvailabilityGroups\{1}\AvailabilityReplicas\{2}\' -f $rp, $ag, $dbReplicaName);

          $avg = (Get-Item ('..\..\..\{0}' -f $ag)); 

           try{ Switch-SqlAvailabilityGroup -InputObject $avg -Confirm; } 

           catch { Write-Host -ForegroundColor Red $_.Exception.Message; } 

           Write-Host "Press any key to exit...";

           $key=[Console]::ReadKey($true);}</Parameter>

  </Parameters>

  <WorkingDirectory/>

</ConsoleTask>