Create Sharepoint 2013 Search Service Application Topology using Script

I have created Search Service Application Topology for sharepoint 2013 using below powershell Script

# Create a new Search Service Application in SharePoint 2013

 Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
# Settings

$IndexLocation = "E:\Sharepoint 2013Index” #Location must be empty, will be deleted during the process!

$SearchAppPoolName = "SearchServiceApplicationPool"

$SearchAppPoolAccountName = "ramu\spsearchapp”

$SearchServerName = (Get-ChildItem env:computername).value

$SearchServiceName = "Search Service Application"

$SearchServiceProxyName = "Search Service Application Proxy"

$DatabaseName = "Search Service AdminDB"

Write-Host -ForegroundColor Yellow "Checking if Search Application Pool exists"

$SPAppPool = Get-SPServiceApplicationPool -Identity $SearchAppPoolName -ErrorAction SilentlyContinue

if (!$SPAppPool)

{

    Write-Host -ForegroundColor Green "Creating Search Application Pool"

    $spAppPool = New-SPServiceApplicationPool -Name $SearchAppPoolName -Account $SearchAppPoolAccountName -Verbose

}

# Start Services search service instance

Write-host "Start Search Service instances...."

Start-SPEnterpriseSearchServiceInstance $SearchServerName -ErrorAction SilentlyContinue

Start-SPEnterpriseSearchQueryAndSiteSettingsServiceInstance $SearchServerName -ErrorAction SilentlyContinue

 

Write-Host -ForegroundColor Yellow "Checking if Search Service Application exists"

$ServiceApplication = Get-SPEnterpriseSearchServiceApplication -Identity $SearchServiceName -ErrorAction SilentlyContinue

if (!$ServiceApplication)

{

    Write-Host -ForegroundColor Green "Creating Search Service Application"

    $ServiceApplication = New-SPEnterpriseSearchServiceApplication -Partitioned -Name $SearchServiceName -ApplicationPool $spAppPool.Name -DatabaseName $DatabaseName

}

 

Write-Host -ForegroundColor Yellow "Checking if Search Service Application Proxy exists"

$Proxy = Get-SPEnterpriseSearchServiceApplicationProxy -Identity $SearchServiceProxyName -ErrorAction SilentlyContinue

if (!$Proxy)

{

    Write-Host -ForegroundColor Green "Creating Search Service Application Proxy"

    New-SPEnterpriseSearchServiceApplicationProxy -Partitioned -Name $SearchServiceProxyName -SearchApplication $ServiceApplication

}

$ServiceApplication.ActiveTopology

Write-Host $ServiceApplication.ActiveTopology

# Clone the default Topology (which is empty) and create a new one and then activate it

Write-Host "Configuring Search Component Topology...."

$clone = $ServiceApplication.ActiveTopology.Clone()

$SSI = Get-SPEnterpriseSearchServiceInstance -local

New-SPEnterpriseSearchAdminComponent –SearchTopology $clone -SearchServiceInstance $SSI

New-SPEnterpriseSearchContentProcessingComponent –SearchTopology $clone -SearchServiceInstance $SSI

New-SPEnterpriseSearchAnalyticsProcessingComponent –SearchTopology $clone -SearchServiceInstance $SSI

New-SPEnterpriseSearchCrawlComponent –SearchTopology $clone -SearchServiceInstance $SSI

Remove-Item -Recurse -Force -LiteralPath $IndexLocation -ErrorAction SilentlyContinue

mkdir -Path $IndexLocation -Force

New-SPEnterpriseSearchIndexComponent –SearchTopology $clone -SearchServiceInstance $SSI -RootDirectory $IndexLocation

New-SPEnterpriseSearchQueryProcessingComponent –SearchTopology $clone -SearchServiceInstance $SSI

$clone.Activate()

Write-host "Your search service application $SearchServiceName is now ready"