' Copyright 2010 Opin Kerfi ehf ok.is.
'
' This program is free software; you can redistribute it and/or
' modify it under the terms of the GNU General Public License
' as published by the Free Software Foundation; version 2
' of the License.
'
' This program is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY; without even the implied warranty of
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
' GNU General Public License for more details.
'
'
' Author Pall Sigurdsson <palli at opensource.is>

'*************************************************************************************************
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
set objRefresher = CreateObject("WbemScripting.SWbemRefresher")
Set colDisks = objRefresher.AddEnum _
    (objWMIService, "win32_perfformatteddata_perfdisk_logicaldisk"). _
        objectSet
objRefresher.Refresh
strOut = "Logical Disks: "
strPerfdata = " | "
'Shii.... I sure hope nobody is going to see how ugly this is
num_disks = 0
For Each objDisk in colDisks
	num_disks = num_disks + 1
Next

    For Each objDisk in colDisks
        objRefresher.Refresh
        strOut = strOut & " " & objDisk.Name & " "
        strPerfdata = strPerfData & " 'ReadBytesPerSec_" & objDisk.Name & "'=" & objDisk.DiskReadBytesPerSec
        strPerfdata = strPerfData & " 'WriteBytesPerSec_" & objDisk.Name & "'=" & objDisk.DiskWriteBytesPerSec
        strPerfdata = strPerfData & " 'ReadsPerSec_" & objDisk.Name & "'=" & objDisk.DiskReadsPerSec
        strPerfdata = strPerfData & " 'WritesPerSec_" & objDisk.Name & "'=" & objDisk.DiskWritesPerSec
	if num_disks < 4 Then
        strPerfdata = strPerfData & " 'PercentDiskReadTime_" & objDisk.Name & "'=" & objDisk.PercentDiskReadTime
        strPerfdata = strPerfData & " 'SplitIOPerSec_" & objDisk.Name & "'=" & objDisk.SplitIOPerSec
        strPerfdata = strPerfData & " 'PercentDiskTime_" & objDisk.Name & "'=" & objDisk.PercentDiskTime
        strPerfdata = strPerfData & " 'AvgDiskBytesPerTransfer_" & objDisk.Name & "'=" & objDisk.AvgDiskBytesPerTransfer
	End If
	if num_disks < 6 Then
        strPerfdata = strPerfData & " 'AvgDiskQueueLength_" & objDisk.Name & "'=" & objDisk.AvgDiskQueueLength
	End If	  

    Next
Wscript.Echo strOut & strPerfdata