$server = "(local)"
$uid = "sa"
$db="master"
$pwd="pwd"
$mailprfname = "sina"
$recipients = "xxxxx@qq.com"
$subject = "Proformance Alter"
$computernamexml = "f:\computername.xml"
$alter_cpuxml = "f:\alter_cpu.xml"
function GetServerName($xmlpath)
{$xml = [xml] (Get-Content $xmlpath)$return = New-Object Collections.Generic.List[string]for($i = 0;$i -lt $xml.computernames.ChildNodes.Count;$i++){if ( $xml.computernames.ChildNodes.Count -eq 1){$cp = [string]$xml.computernames.computername}else{$cp = [string]$xml.computernames.computername[$i]}$return.Add($cp.Trim())}$return
}function GetAlterCounter($xmlpath)
{$xml = [xml] (Get-Content $xmlpath)$return = New-Object Collections.Generic.List[string]$list = $xml.counters.Counter$list
}function CreateAlter($message)
{$SqlConnection = New-Object System.Data.SqlClient.SqlConnection $CnnString ="Server = $server; Database = $db;User Id = $uid; Password = $pwd" $SqlConnection.ConnectionString = $CnnString $CC = $SqlConnection.CreateCommand(); if (-not ($SqlConnection.State -like "Open")) { $SqlConnection.Open() } $cc.CommandText=" EXEC msdb..sp_send_dbmail @profile_name  = '$mailprfname',@recipients = '$recipients',@body = '$message',@subject = '$subject'
" $cc.ExecuteNonQuery()|out-null $SqlConnection.Close();
}$names = GetServerName($computernamexml)
$pfcounters = GetAlterCounter($alter_cpuxml)
foreach($cp in $names)
{$p = New-Object Collections.Generic.List[string]$report = ""foreach ($pfc in $pfcounters){$b = ""$counter ="\\"+$cp+$pfc.get_InnerText().Trim()$p.Add($counter)}$count = Get-Counter $pfor ($i = 0; $i -lt $count.CounterSamples.Count; $i++){$v = $count.CounterSamples.Get($i).CookedValue$pfc = $pfcounters[$i]#$pfc.get_InnerText()$b = ""$lg = ""if($pfc.operator -eq "lt"){if ($v -ge [double]$pfc.alter){$b = "alter"$lg = "Greater Than"}}elseif ($pfc.operator -eq "gt"){if( $v -le [double]$pfc.alter){$b = "alter"$lg = "Less Than"}}if($b -eq "alter"){$path = "\\"+$cp+$pfc.get_InnerText()$item = "{0}:{1};{2} Threshold:{3}" -f $path,$v.ToString(),$lg,$pfc.alter.Trim()$report += $item + "`n"}}if($report -ne ""){#生产警告 参数 计数器，阀值，当前值CreateAlter $report}
}

<computernames><computername>fanr-pc</computername>
</computernames>

<Counters><Counter alter = "10" operator = "gt" >\Processor(_Total)\% Processor Time</Counter><Counter alter = "10" operator = "gt" >\Processor(_Total)\% Privileged Time</Counter><Counter alter = "10" operator = "gt" >\SQLServer:SQL Statistics\Batch Requests/sec</Counter><Counter alter = "10" operator = "gt" >\SQLServer:SQL Statistics\SQL Compilations/sec</Counter><Counter alter = "10" operator = "gt" >\SQLServer:SQL Statistics\SQL Re-Compilations/sec</Counter><Counter alter = "10" operator=  "lt" >\System\Processor Queue Length</Counter><Counter alter = "10" operator=  "lt" >\System\Context Switches/sec</Counter>
</Counters>