How to change the Search Topology in SharePoint 2013

Hi all! Today I bring some PowerShelling to change the topology of our farms.

Imagine the following scenario: For several reasons, you had to install in the SharePoint farm all the components in a single server, but after a time your company decides to implement a new server to dedicate the search process on it. Your initial topology would like the following:

s1

But as I said previously, you want to add another server to the farm and then configure this new server to change the search topology, but you want to mantain the existent Search configuration. You will be thinking, what can I do? The answer is pretty simple: PowerShelling 🙂

In the next lines I will post the PowerShell code that I used to change the search topology of a farm. Be aware that you will need to change the names of the variables 🙂

Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
#==============================================================
     #Configuración de la aplicación de servicio
#==============================================================
$WFE1="SRVWFE"
$index="SRVBEIndex"
$SearchApplicationPoolName = "YourPoolForAppServices"
$SearchApplicationPoolAccountName = "domainYourPoolAccount"
$SearchServiceApplicationName = "Name_of_yourSearch_Service_Application"
$SearchServiceApplicationProxyName = "Name_of_yourSearch_Service_Application_Proxy"
$DatabaseServer = "SRVBBDD"
$DatabaseName = "YourSearch_SEARCH_DB"
$IndexLocationServer1 = "E:Index"  
$IndexLocationServer23= "E:Index"  

#==============================================================
           #App Pool Búsqueda
#==============================================================
Write-Host -ForegroundColor DarkGray "Comprobando si existe el App Pool"
$SPServiceApplicationPool = Get-SPServiceApplicationPool -Identity $SearchApplicationPoolName -ErrorAction SilentlyContinue

if (!$SPServiceApplicationPool)
{
    Write-Host -ForegroundColor Yellow "Creando el App Pool"
    $SPServiceApplicationPool = New-SPServiceApplicationPool -Name $SearchApplicationPoolName -Account $SearchApplicationPoolAccountName -Verbose
}

 
#==============================================================
           #Search Sevice
#==============================================================
Write-Host -ForegroundColor DarkGray "Comprobando si la app de busqueda existe"
$SearchServiceApplication = Get-SPEnterpriseSearchServiceApplication -Identity $SearchServiceApplicationName -ErrorAction SilentlyContinue
if (!$SearchServiceApplication)
{
    Write-Host -ForegroundColor Yellow "Creando la Aplicación de servicio"
    $SearchServiceApplication = New-SPEnterpriseSearchServiceApplication -Name $SearchServiceApplicationName -ApplicationPool $SPServiceApplicationPool.Name -DatabaseServer  $DatabaseServer -DatabaseName $DatabaseName
} 
Write-Host -ForegroundColor DarkGray "Comprobando si el proxy existe"
$SearchServiceApplicationProxy = Get-SPEnterpriseSearchServiceApplicationProxy -Identity $SearchServiceApplicationProxyName 
{
    Write-Host -ForegroundColor Yellow "Creando el proxy"
    New-SPEnterpriseSearchServiceApplicationProxy -Name $SearchServiceApplicationProxyName -SearchApplication  $SearchServiceApplicationName
}
   
#==============================================================
          #Inciar la instancia en el servidor 1
#==============================================================
$SearchServiceInstanceServer1 = Get-SPEnterpriseSearchServiceInstance -local
Write-Host -ForegroundColor DarkGray "Comprobando si la instancia esta online en el servidor 1"
if($SearchServiceInstanceServer1.Status -ne "Online")
{
  Write-Host -ForegroundColor Yellow "Iniciando la instancia de busqueda"
  Start-SPEnterpriseSearchServiceInstance -Identity $SearchServiceInstanceServer1
  While ($SearchServiceInstanceServer1.Status -ne "Online")
  {
      Start-Sleep -s 5
  }
  Write-Host -ForegroundColor Yellow "Arrancado en servidor 1"
}
  
 
#==============================================================
         #Inciar la instancia en el servidor Index
#==============================================================
$SearchServiceInstanceServer3 = Get-SPEnterpriseSearchServiceInstance -Identity $index
Write-Host -ForegroundColor DarkGray "Comprondo si la instancia esta online en el servidor Index"
if($SearchServiceInstanceServer3.Status -ne "Online")
 {
  Write-Host -ForegroundColor Yellow "Iniciando la instancia de busqueda"
  Start-SPEnterpriseSearchServiceInstance -Identity $SearchServiceInstanceServer3
  While ($SearchServiceInstanceServer3.Status -ne "Online")
   {
       Start-Sleep -s 5
  }
  Write-Host -ForegroundColor Yellow "Arrancado en servidor Index"
}



#==============================================================
  #No se pueden hacer cambios en una toplogia activa
  #Creando una nueva topología para añadir los componentes  
#==============================================================
  
$InitialSearchTopology = $SearchServiceApplication | 
Get-SPEnterpriseSearchTopology -Active 
$NewSearchTopology = $SearchServiceApplication | New-SPEnterpriseSearchTopology


 #==============================================================
         #Componentes en servidor Index
         #Creando todos los componentes menos el índice y el crawl que lo llevan los frontales
#==============================================================
#INDEX 1
New-SPEnterpriseSearchAnalyticsProcessingComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer3  
New-SPEnterpriseSearchContentProcessingComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer3
New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer3
New-SPEnterpriseSearchAdminComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer3

  
#==============================================================
 #Componentes en servidor1:
 #Crawl y Query 
#==============================================================
New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer1
New-SPEnterpriseSearchCrawlComponent -SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer1


#==============================================================
         #Componentes de íncide con sus replicas
#==============================================================
New-SPEnterpriseSearchIndexComponent –SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer1 -RootDirectory $IndexLocationServer1 -IndexPartition 0
New-SPEnterpriseSearchIndexComponent –SearchTopology $NewSearchTopology -SearchServiceInstance $SearchServiceInstanceServer3 -RootDirectory $IndexLocationServer3 -IndexPartition 0

 #==============================================================
    #Marcar la topología como activa
 #==============================================================
 Set-SPEnterpriseSearchTopology -Identity $NewSearchTopology


 #==============================================================
                 #Limpiar la topolgía antigua
 #==============================================================
 Write-Host -ForegroundColor DarkGray "Borrando la topología antigua"
 Remove-SPEnterpriseSearchTopology -Identity $InitialSearchTopology -Confirm:$false
 Write-Host -ForegroundColor Yellow "Topología antigua borrada"

 #==============================================================
                 #Comprobar la topología de búsqueda
 #==============================================================
 Get-SPEnterpriseSearchStatus -SearchApplication $SearchServiceApplication -Text
 Write-Host -ForegroundColor Yellow "Todo configurado.....esperemos :)"

After executing this PowerShell, we have to wait until the server has done all the changes in the search topology, so be patient. After a while you’ll see a screen like the following:

s2

Now you’ll have the search components between the servers.

Happy Powershelling!!

Note 1: If you receive an error related with the index, be aware that is not possible to put the same old index location and the new index location in the same folder. I suggest to create a new folder called “New Index” or something like that

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