$sts = Get-SPSecurityTokenServiceConfig
$sts.FormsTokenLifetime = (New-TimeSpan -minutes 2)
$sts.WindowsTokenLifetime = (New-TimeSpan -minutes 2)
$sts.LogonTokenCacheExpirationWindow = (New-TimeSpan -minutes 1)
$sts.Update()
iisreset

stsadm -o setproperty -pn command-line-upgrade-running -pv No

psconfig -cmd upgrade -inplace b2b -force -wait

Reduce the amount of data a TimerJobHistory table.

$history = Get-SPTimerJob | Where-Object {$_.name -eq „job-delete-job-history“}
$history.daystokeephistory

$history.daystokeephistory = 2
$history.update()
$history.runnow()

Get-SPDatabase | where {$_.Type -notcontains „Content Database“ -and ` $_.Type -notcontains „Configuration Database“} | sort Type | format-table –autosize

$db2delete = Get-SPDatabase “GUID”
$db2delete

$db2delete.status

$db2delete.Delete()

Get -SPServiceApplication

Grab the Search Service Application id – [for example] 30b15b57-6bec-46b5-990d-541d99bab53b

then use this

Stsadm -o deleteconfigurationobject -id 30b15b57-6bec-46b5-990d-541d99bab53b

export-spweb http://tbportal/changefacilitators -itemurl „_catalogs/lt/“ -path c:\test.cmp

Import-SPWeb -Identity  http://tbportal/chm  -Path c:\test.cmp 

Syntax:
To backup a document library called ‘Library1′ in ‘Subsite’.
export-spweb