SharePoint 2013 – Create a Search Service Application and Search Topology with Powershell

Steps to follow..

1. Create a Service Application Pool for the Search Service Application (15-22)
2. Create a Search Service Application (22-28)
3. Create a Search Service Application Proxy (30-36)
4. Get the current Search Instance (38)
5. Save the current Search Topology for later use (39)
6. Create a new Search Topology (40)
7. Create all the Search Components (Analytics- , Content Processing, Query Processing, Crawler-, Admin Component) (42-46)
8. Remove the Index-Folder and recreate it (50-51)
9. Create a new Index Component (53)
10. Activate the new Topology (56)
11. Call the method synchronize on the old topology – this errors but forces an update on the old topology object (59)
12. The “forced updated” Topology object becomes inactive and can be deleted. (62)
13. Everything  done – start a full crawl order set it to the new shiny continuous crawling. 

Powershell to the rescue!

Here is my powershell script for creating the whole service application and creating a basic topology.

Please keep in mind that the $IndexLocation folder will be deleted and recreated.

Adjust the settings in the lines 4-11 to your needs.

1. Add-PsSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
2.  
3. #Settings
4. $IndexLocation = "C:\Search"  #Location must be empty, will be deleted during the process!
5. $SearchAppPoolName = "Search App Pool"
6. $SearchAppPoolAccountName = "demo\SPSearchAppPool"
7. $SearchServiceName = "Search SA"
8. $SearchServiceProxyName = "Search SA Proxy"
9.  
10. $DatabaseServer = "sp2013\sharepoint"
11. $DatabaseName = "SP2013 Search"
12.  
13. Write-Host -ForegroundColor Yellow "Checking if Search Application Pool exists"
14. $spAppPool = Get-SPServiceApplicationPool -Identity $SearchAppPoolName -ErrorAction SilentlyContinue
15.  
16. if (!$spAppPool)
17. {
18.     Write-Host -ForegroundColor Green "Creating Search Application Pool"
19.     $spAppPool = New-SPServiceApplicationPool -Name $SearchAppPoolName -Account $SearchAppPoolAccountName -Verbose
20. }
21.  
22. Write-Host -ForegroundColor Yellow "Checking if Search Service Application exists"
23. $ServiceApplication = Get-SPEnterpriseSearchServiceApplication -Identity $SearchServiceName -ErrorAction SilentlyContinue
24. if (!$ServiceApplication)
25. {
26.     Write-Host -ForegroundColor Green "Creating Search Service Application"
27.     $ServiceApplication = New-SPEnterpriseSearchServiceApplication -Name $SearchServiceName -ApplicationPool $spAppPool.Name -DatabaseServer  $DatabaseServer -DatabaseName $DatabaseName
28. }
29.  
30. Write-Host -ForegroundColor Yellow "Checking if Search Service Application Proxy exists"
31. $Proxy = Get-SPEnterpriseSearchServiceApplicationProxy -Identity $SearchServiceProxyName -ErrorAction SilentlyContinue
32. if (!$Proxy)
33. {
34.     Write-Host -ForegroundColor Green "Creating Search Service Application Proxy"
35.     New-SPEnterpriseSearchServiceApplicationProxy -Name $SearchServiceProxyName -SearchApplication $SearchServiceName
36. }
37.  
38. $searchInstance = Get-SPEnterpriseSearchServiceInstance -local
39. $InitialSearchTopology = $ServiceApplication | Get-SPEnterpriseSearchTopology -Active
40. $SearchTopology = $ServiceApplication | New-SPEnterpriseSearchTopology
41.  
42. New-SPEnterpriseSearchAnalyticsProcessingComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance
43. New-SPEnterpriseSearchContentProcessingComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance
44. New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance
45. New-SPEnterpriseSearchCrawlComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance
46. New-SPEnterpriseSearchAdminComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance
47.  
48. set-SPEnterpriseSearchAdministrationComponent -SearchApplication $ServiceApplication -SearchServiceInstance  $searchInstance
49.  
50. Remove-Item -Recurse -Force -LiteralPath $IndexLocation -ErrorAction SilentlyContinue
51. mkdir -Path $IndexLocation -Force
52.  
53. New-SPEnterpriseSearchIndexComponent -SearchTopology $SearchTopology -SearchServiceInstance $searchInstance -RootDirectory $IndexLocation
54.  
55. Write-Host -ForegroundColor Green "Activating new topology"
56. $SearchTopology.Activate()
57.  
58. Write-Host -ForegroundColor Yellow "Next call will provoke an error but after that the old topology can be deleted - just ignore it!"
59. $InitialSearchTopology.Synchronize()
60.  
61. Write-Host -ForegroundColor Yellow "Deleting old topology"
62. Remove-SPEnterpriseSearchTopology -Identity $InitialSearchTopology -Confirm:$false
63. Write-Host -ForegroundColor Green "Old topology deleted"
64. Write-Host -ForegroundColor Green "Done - start a full crawl and you are good to go (search)."

it takes around 5 to 10 mins.

Get received from http://sharepoint-tutorial.net/post/2012/07/22/sharepoint-2013-search-powershell.aspx