$hostA = Get-SPEnterpriseSearchServiceInstance -Identity "DevSearch2013"

Start-SPEnterpriseSearchServiceInstance -Identity $hostA

Get-SPEnterpriseSearchServiceInstance -Identity $hostA

$ssa = Get-SPEnterpriseSearchServiceApplication

$newTopology = New-SPEnterpriseSearchTopology -SearchApplication $ssa

New-SPEnterpriseSearchAdminComponent -SearchTopology $newTopology -SearchServiceInstance $hostA

New-SPEnterpriseSearchCrawlComponent -SearchTopology $newTopology -SearchServiceInstance $hostA

New-SPEnterpriseSearchContentProcessingComponent -SearchTopology $newTopology -SearchServiceInstance $hostA

New-SPEnterpriseSearchAnalyticsProcessingComponent -SearchTopology $newTopology -SearchServiceInstance $hostA

New-SPEnterpriseSearchQueryProcessingComponent -SearchTopology $newTopology -SearchServiceInstance $hostA

New-SPEnterpriseSearchIndexComponent -SearchTopology $newTopology -SearchServiceInstance $hostA -IndexPartition 0

Set-SPEnterpriseSearchTopology -Identity $newTopology