When you try to create Search services in SharePoint 2010 using the wizard, it gives you nightmare with the Database names with horrible GUIDs...
here is a simple script to ease your life:
## Parameters used
## change the variables below to your own servers and naming conventions
$databaseServerName = "shrpt-db-server"
$searchServerName = "shrpt-apps-server"
$searchSAName = "Search Service Application"
$saAppPoolName = "SharePoint Web Services Default"
$searchDBName = "Search_Services_Application_DB"
## First remove the old search
## This will require an id - namely a guid so get the service guid before doing this
$spapp = Get-SPServiceApplication -Name $searchSAName
Remove-SPServiceApplication $spapp -RemoveData
##START SEARCH
Write-Host "Creating Search Service and Proxy..."
Write-Host " Starting Services..."
Start-SPEnterpriseSearchServiceInstance $searchServerName
Start-SPEnterpriseSearchQueryAndSiteSettingsServiceInstance $searchServerName
Write-Host " Creating Search Application..."
$searchApp = New-SPEnterpriseSearchServiceApplication -Name $searchSAName -ApplicationPool $saAppPoolName -DatabaseServer $databaseServerName -DatabaseName $searchDBName
$searchInstance = Get-SPEnterpriseSearchServiceInstance $searchServerName
Write-Host " Creating Administration Component..."
$searchApp | Get-SPEnterpriseSearchAdministrationComponent | Set-SPEnterpriseSearchAdministrationComponent -SearchServiceInstance $searchInstance
##Crawl
Write-Host " Creating Crawl Component..."
$InitialCrawlTopology = $searchApp | Get-SPEnterpriseSearchCrawlTopology -Active
$CrawlTopology = $searchApp | New-SPEnterpriseSearchCrawlTopology
$CrawlDatabase = ([array]($searchApp | Get-SPEnterpriseSearchCrawlDatabase))[0]
$CrawlComponent = New-SPEnterpriseSearchCrawlComponent -CrawlTopology $CrawlTopology -CrawlDatabase $CrawlDatabase -SearchServiceInstance $searchInstance
$CrawlTopology | Set-SPEnterpriseSearchCrawlTopology -Active
Write-Host -ForegroundColor white " Waiting for the old crawl topology to become inactive" -NoNewline
do {write-host -NoNewline .;Start-Sleep 6;} while ($InitialCrawlTopology.State -ne "Inactive")
$InitialCrawlTopology | Remove-SPEnterpriseSearchCrawlTopology -Confirm:$false
Write-Host
##Query
Write-Host " Creating Query Component..."
$InitialQueryTopology = $searchApp | Get-SPEnterpriseSearchQueryTopology -Active
$QueryTopology = $searchApp | New-SPEnterpriseSearchQueryTopology -Partitions 1
$IndexPartition= (Get-SPEnterpriseSearchIndexPartition -QueryTopology $QueryTopology)
$QueryComponent = New-SPEnterpriseSearchQuerycomponent -QueryTopology $QueryTopology -IndexPartition $IndexPartition -SearchServiceInstance $searchInstance
$PropertyDatabase = ([array]($searchApp | Get-SPEnterpriseSearchPropertyDatabase))[0]
$IndexPartition | Set-SPEnterpriseSearchIndexPartition -PropertyDatabase $PropertyDatabase
$QueryTopology | Set-SPEnterpriseSearchQueryTopology -Active
## Proxy
Write-Host " Creating Proxy..."
$searchAppProxy = New-SPEnterpriseSearchServiceApplicationProxy -Name "$searchSAName Proxy" -SearchApplication $searchSAName > $null
#####END SEARCH
here is a simple script to ease your life:
## Parameters used
## change the variables below to your own servers and naming conventions
$databaseServerName = "shrpt-db-server"
$searchServerName = "shrpt-apps-server"
$searchSAName = "Search Service Application"
$saAppPoolName = "SharePoint Web Services Default"
$searchDBName = "Search_Services_Application_DB"
## First remove the old search
## This will require an id - namely a guid so get the service guid before doing this
$spapp = Get-SPServiceApplication -Name $searchSAName
Remove-SPServiceApplication $spapp -RemoveData
##START SEARCH
Write-Host "Creating Search Service and Proxy..."
Write-Host " Starting Services..."
Start-SPEnterpriseSearchServiceInstance $searchServerName
Start-SPEnterpriseSearchQueryAndSiteSettingsServiceInstance $searchServerName
Write-Host " Creating Search Application..."
$searchApp = New-SPEnterpriseSearchServiceApplication -Name $searchSAName -ApplicationPool $saAppPoolName -DatabaseServer $databaseServerName -DatabaseName $searchDBName
$searchInstance = Get-SPEnterpriseSearchServiceInstance $searchServerName
Write-Host " Creating Administration Component..."
$searchApp | Get-SPEnterpriseSearchAdministrationComponent | Set-SPEnterpriseSearchAdministrationComponent -SearchServiceInstance $searchInstance
##Crawl
Write-Host " Creating Crawl Component..."
$InitialCrawlTopology = $searchApp | Get-SPEnterpriseSearchCrawlTopology -Active
$CrawlTopology = $searchApp | New-SPEnterpriseSearchCrawlTopology
$CrawlDatabase = ([array]($searchApp | Get-SPEnterpriseSearchCrawlDatabase))[0]
$CrawlComponent = New-SPEnterpriseSearchCrawlComponent -CrawlTopology $CrawlTopology -CrawlDatabase $CrawlDatabase -SearchServiceInstance $searchInstance
$CrawlTopology | Set-SPEnterpriseSearchCrawlTopology -Active
Write-Host -ForegroundColor white " Waiting for the old crawl topology to become inactive" -NoNewline
do {write-host -NoNewline .;Start-Sleep 6;} while ($InitialCrawlTopology.State -ne "Inactive")
$InitialCrawlTopology | Remove-SPEnterpriseSearchCrawlTopology -Confirm:$false
Write-Host
##Query
Write-Host " Creating Query Component..."
$InitialQueryTopology = $searchApp | Get-SPEnterpriseSearchQueryTopology -Active
$QueryTopology = $searchApp | New-SPEnterpriseSearchQueryTopology -Partitions 1
$IndexPartition= (Get-SPEnterpriseSearchIndexPartition -QueryTopology $QueryTopology)
$QueryComponent = New-SPEnterpriseSearchQuerycomponent -QueryTopology $QueryTopology -IndexPartition $IndexPartition -SearchServiceInstance $searchInstance
$PropertyDatabase = ([array]($searchApp | Get-SPEnterpriseSearchPropertyDatabase))[0]
$IndexPartition | Set-SPEnterpriseSearchIndexPartition -PropertyDatabase $PropertyDatabase
$QueryTopology | Set-SPEnterpriseSearchQueryTopology -Active
## Proxy
Write-Host " Creating Proxy..."
$searchAppProxy = New-SPEnterpriseSearchServiceApplicationProxy -Name "$searchSAName Proxy" -SearchApplication $searchSAName > $null
#####END SEARCH