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Cozumpark Bilisim Portali
Posted in Windows Powershell, Windows Server | No Comment | 1,804 views | 28/02/2014 11:57

If you want to use FCAdapter WMI Class to see Physical and Virtual Port WWPNs, this function will make WWPNs readable.

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function ConvertTo-WWPN
{
<#
    .SYNOPSIS
 
        Converts WWPN Integer Array to WWPN
 
    .EXAMPLE
 
        ConvertTo-WWPN -WWPNArray (Get-WmiObject -Namespace "root\wmi" -Class MSFC_FCAdapterHBAAttributes).NodeWWN
 
    .NOTES
 
        Author: Yusuf Ozturk
        Website: http://www.yusufozturk.info
        Email: ysfozy[at]gmail.com
 
#>
 
[CmdletBinding(SupportsShouldProcess = $true)]
param (
 
    [Parameter(
        Mandatory = $true,
        HelpMessage = 'WWPN Array')]
    $WWPNArray,
 
	[Parameter(
        Mandatory = $false,
        HelpMessage = 'Debug Mode')]
    [switch]$DebugMode = $false
)
	# Enable Debug Mode
	if ($DebugMode)
	{
		$DebugPreference = "Continue"
	}
	else
	{
		$ErrorActionPreference = "silentlycontinue"
	}
 
	# Clear Values
	$WWPN = $Null;
	$WWPNInt = $Null;
	$WWPNIntArray = $Null;
	$WWPNObjArray = $Null;
	$CheckWWPNArray = $Null;
 
	# Check WWPN Array
	$CheckWWPNArray = $WWPNArray -as [int[]]
 
	if ($CheckWWPNArray)
	{		
		# Get Length
		$Length = $WWPNArray.Length;
 
		# Create WWPN Object Array
		for ($WWPNInt = 0; $WWPNInt -lt $Length; $WWPNInt++)
		{
			[int[]]$WWPNIntArray = $WWPNIntArray + [int] $WWPNArray[$WWPNInt];
			[Object[]]$WWPNObjArray = $WWPNObjArray + "{0:X}" -f $WWPNIntArray[$WWPNInt];
		}
 
		# Create WWPN Address
		for($WWPNInt = 0; $WWPNInt -lt $Length; $WWPNInt++)
		{
			if ($WWPNObjArray[$WWPNInt].Length -eq 1)
			{
				$WWPN = $WWPN + "0" + $WWPNObjArray[$WWPNInt];
			}
			else 
			{
				$WWPN = $WWPN + $WWPNObjArray[$WWPNInt];
			}
 
			if ($WWPNInt -lt $Length - 1)
			{
				$WWPN = $WWPN + ":"
			}
 
			if ($WWPN.Length -eq "23")
			{
				# Output WWPN
				[String]$WWPN;
			}
			elseif ($WWPN.Length -eq "24")
			{
				# Fix WWPN Value
				$WWPN = $WWPN.Substring(0,23)
 
				# Output WWPN
				[String]$WWPN;
 
				# Clear WWPN
				$WWPN = $Null;
			}
		}
	}
}

You can test this function with following script:

ConvertTo-WWPN -WWPNArray (Get-WmiObject -Namespace "root\wmi" -Class MSFC_FCAdapterHBAAttributes).NodeWWN

As a result, you will see WWPNs of FC Adapters.


Posted in Windows Powershell, Windows Server | 1 Comment | 4,178 views | 23/02/2014 21:33

We can use WMI to get CPU temperature via PowerShell:

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# Target Server
$Server = "localhost"
 
# Get Thermal Information
$ThermalInformation = Get-WmiObject -ComputerName $Server -Namespace "root\wmi" -Class "MSAcpi_ThermalZoneTemperature"
 
# Calculate CPU Temperature
if ($ThermalInformation)
{
	$HostCPUTemperature = [math]::round((($ThermalInformation.CurrentTemperature - 2732) / 10), 0)
}
else
{
	$HostCPUTemperature = "Unknown"
}
 
Write-Host CPU Temp: $HostCPUTemperature °C

In my case, CPU Temp is always 8 °C, I don’t know, Why :)


Posted in Windows Powershell | No Comment | 2,426 views | 21/02/2014 22:35

If you have special characters in your VM names, you may need to modify your XML files to fix reporting page.
Some characters (like &) may be special in XML, so you may need to change them to fix reporting page.

This is a simple script to search for “&” character in all XML files and replace them via “&”.

Thanks to Bill Stewart for Replace-FileString cmdlet. I made it a function to use in my case:

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function Replace-FileString
{
 
# Replace-FileString.ps1
# Written by Bill Stewart (bstewart@iname.com)
#
# Replaces strings in files using a regular expression. Supports
# multi-line searching and replacing.
 
#requires -version 2
 
<#
.SYNOPSIS
Replaces strings in files using a regular expression.
 
.DESCRIPTION
Replaces strings in files using a regular expression. Supports
multi-line searching and replacing.
 
.PARAMETER Pattern
Specifies the regular expression pattern.
 
.PARAMETER Replacement
Specifies the regular expression replacement pattern.
 
.PARAMETER Path
Specifies the path to one or more files. Wildcards are permitted. Each
file is read entirely into memory to support multi-line searching and
replacing, so performance may be slow for large files.
 
.PARAMETER LiteralPath
Specifies the path to one or more files. The value of the this
parameter is used exactly as it is typed. No characters are interpreted
as wildcards. Each file is read entirely into memory to support
multi-line searching and replacing, so performance may be slow for
large files.
 
.PARAMETER CaseSensitive
Specifies case-sensitive matching. The default is to ignore case.
 
.PARAMETER Multiline
Changes the meaning of ^ and $ so they match at the beginning and end,
respectively, of any line, and not just the beginning and end of the
entire file. The default is that ^ and $, respectively, match the
beginning and end of the entire file.
 
.PARAMETER UnixText
Causes $ to match only linefeed (\n) characters. By default, $ matches
carriage return+linefeed (\r\n). (Windows-based text files usually use
\r\n as line terminators, while Unix-based text files usually use only
\n.)
 
.PARAMETER Overwrite
Overwrites a file by creating a temporary file containing all
replacements and then replacing the original file with the temporary
file. The default is to output but not overwrite.
 
.PARAMETER Force
Allows overwriting of read-only files. Note that this parameter cannot
override security restrictions.
 
.PARAMETER Encoding
Specifies the encoding for the file when -Overwrite is used. Possible
values are: ASCII, BigEndianUnicode, Unicode, UTF32, UTF7, or UTF8. The
default value is ASCII.
 
.INPUTS
System.IO.FileInfo.
 
.OUTPUTS
System.String without the -Overwrite parameter, or nothing with the
-Overwrite parameter.
 
.LINK
about_Regular_Expressions
 
.EXAMPLE
C:\>Replace-FileString.ps1 '(Ferb) and (Phineas)' '$2 and $1' Story.txt
This command replaces the string 'Ferb and Phineas' with the string
'Phineas and Ferb' in the file Story.txt and outputs the file. Note
that the pattern and replacement strings are enclosed in single quotes
to prevent variable expansion.
 
.EXAMPLE
C:\>Replace-FileString.ps1 'Perry' 'Agent P' Ferb.txt -Overwrite
This command replaces the string 'Perry' with the string 'Agent P' in
the file Ferb.txt and overwrites the file.
#>
 
[CmdletBinding(DefaultParameterSetName="Path",
               SupportsShouldProcess=$TRUE)]
param(
  [parameter(Mandatory=$TRUE,Position=0)]
    [String] $Pattern,
  [parameter(Mandatory=$TRUE,Position=1)]
    [String] [AllowEmptyString()] $Replacement,
  [parameter(Mandatory=$TRUE,ParameterSetName="Path",
    Position=2,ValueFromPipeline=$TRUE)]
    [String[]] $Path,
  [parameter(Mandatory=$TRUE,ParameterSetName="LiteralPath",
    Position=2)]
    [String[]] $LiteralPath,
    [Switch] $CaseSensitive,
    [Switch] $Multiline,
    [Switch] $UnixText,
    [Switch] $Overwrite,
    [Switch] $Force,
    [String] $Encoding="ASCII"
)
 
begin {
  # Throw an error if $Encoding is not valid.
  $encodings = @("ASCII","BigEndianUnicode","Unicode","UTF32","UTF7",
                 "UTF8")
  if ($encodings -notcontains $Encoding) {
    throw "Encoding must be one of the following: $encodings"
  }
 
  # Extended test-path: Check the parameter set name to see if we
  # should use -literalpath or not.
  function test-pathEx($path) {
    switch ($PSCmdlet.ParameterSetName) {
      "Path" {
        test-path $path
      }
      "LiteralPath" {
        test-path -literalpath $path
      }
    }
  }
 
  # Extended get-childitem: Check the parameter set name to see if we
  # should use -literalpath or not.
  function get-childitemEx($path) {
    switch ($PSCmdlet.ParameterSetName) {
      "Path" {
        get-childitem $path -force
      }
      "LiteralPath" {
        get-childitem -literalpath $path -force
      }
    }
  }
 
  # Outputs the full name of a temporary file in the specified path.
  function get-tempname($path) {
    do {
      $tempname = join-path $path ([IO.Path]::GetRandomFilename())
    }
    while (test-path $tempname)
    $tempname
  }
 
  # Use '\r$' instead of '$' unless -UnixText specified because
  # '$' alone matches '\n', not '\r\n'. Ignore '\$' (literal '$').
  if (-not $UnixText) {
    $Pattern = $Pattern -replace '(?<!\\)\$', '\r$'
  }
 
  # Build an array of Regex options and create the Regex object.
  $opts = @()
  if (-not $CaseSensitive) { $opts += "IgnoreCase" }
  if ($MultiLine) { $opts += "Multiline" }
  if ($opts.Length -eq 0) { $opts += "None" }
  $regex = new-object Text.RegularExpressions.Regex $Pattern, $opts
}
 
process {
  # The list of items to iterate depends on the parameter set name.
  switch ($PSCmdlet.ParameterSetName) {
    "Path" { $list = $Path }
    "LiteralPath" { $list = $LiteralPath }
  }
 
  # Iterate the items in the list of paths. If an item does not exist,
  # continue to the next item in the list.
  foreach ($item in $list) {
    if (-not (test-pathEx $item)) {
      write-error "Unable to find '$item'."
      continue
    }
 
    # Iterate each item in the path. If an item is not a file,
    # skip all remaining items.
    foreach ($file in get-childitemEx $item) {
      if ($file -isnot [IO.FileInfo]) {
        write-error "'$file' is not in the file system."
        break
      }
 
      # Get a temporary file name in the file's directory and create
      # it as a empty file. If set-content fails, continue to the next
      # file. Better to fail before than after reading the file for
      # performance reasons.
      if ($Overwrite) {
        $tempname = get-tempname $file.DirectoryName
        set-content $tempname $NULL -confirm:$FALSE
        if (-not $?) { continue }
        write-verbose "Created file '$tempname'."
      }
 
      # Read all the text from the file into a single string. We have
      # to do it this way to be able to search across line breaks.
      try {
        write-verbose "Reading '$file'."
        $text = [IO.File]::ReadAllText($file.FullName)
        write-verbose "Finished reading '$file'."
      }
      catch [Management.Automation.MethodInvocationException] {
        write-error $ERROR[0]
        continue
      }
 
      # If -Overwrite not specified, output the result of the Replace
      # method and continue to the next file.
      if (-not $Overwrite) {
        $regex.Replace($text, $Replacement)
        continue
      }
 
      # Do nothing further if we're in 'what if' mode.
      if ($WHATIFPREFERENCE) { continue }
 
      try {
        write-verbose "Writing '$tempname'."
        [IO.File]::WriteAllText("$tempname", $regex.Replace($text,
          $Replacement), [Text.Encoding]::$Encoding)
        write-verbose "Finished writing '$tempname'."
        write-verbose "Copying '$tempname' to '$file'."
        copy-item $tempname $file -force:$Force -erroraction Continue
        if ($?) {
          write-verbose "Finished copying '$tempname' to '$file'."
        }
        remove-item $tempname
        if ($?) {
          write-verbose "Removed file '$tempname'."
        }
      }
      catch [Management.Automation.MethodInvocationException] {
        write-error $ERROR[0]
      }
    } # foreach $file
  } # foreach $item
} # process
 
end { }
}
 
$Files = Get-ChildItem -Path "C:\Program Files\VirtualMetric\webserver\http\xml\01" -Filter *.xml -Recurse
 
foreach ($File in $Files)
{
	$Path = $File.FullName
	$FileContent = Replace-FileString -Pattern "&" -Replacement "&#38;" -Path $Path
	$FileContent | Set-Content $Path
	Write-Host $Path is OK!
}

Please backup your XML directory first to avoid data corruption.


Posted in Virtual Machine Manager, Windows Powershell | No Comment | 1,887 views | 21/02/2014 10:49

Following script could be used to find similar virtual machines in same Cluster or Hyper-V Host.
This is very useful to split virtual machines if they have same workloads.

For example if you have two virtual machines with same workload like:

IISServer01
IISServer02

This script will find them and list them with a useful output. You should use it on SCVMM 2012 R2 Console:

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function Get-SimilarVM
{
<#
    .SYNOPSIS
 
        Gets similar virtual machines in same cluster, host or cloud
 
    .EXAMPLE
 
        Get-SimilarVM
 
    .EXAMPLE
 
        Get-SimilarVM -ClusterName "VMHOSTCluster01"
 
    .EXAMPLE
 
        Get-SimilarVM -VMHostName "VMHOST01"
 
    .NOTES
 
        Author: Yusuf Ozturk
        Website: http://www.yusufozturk.info
        Email: ysfozy@gmail.com
        Date created: 20-Feb-2014
        Last modified: 21-Feb-2014
        Version: 1.1
 
    .LINK
 
        http://www.yusufozturk.info
 
#>
 
[CmdletBinding(SupportsShouldProcess = $true)]
param (
    [Parameter(
        Mandatory = $false,
        HelpMessage = 'Cluster Name')]
    [string]$ClusterName,
 
    [Parameter(
        Mandatory = $false,
        HelpMessage = 'Hyper-V Host')]
    [string]$VMHostName,
 
	[Parameter(
        Mandatory = $false,
        HelpMessage = 'Debug Mode')]
    [switch]$DebugMode = $false
)
	# Enable Debug Mode
	if ($DebugMode)
	{
		$DebugPreference = "Continue"
	}
	else
	{
		$ErrorActionPreference = "silentlycontinue"
	}
 
	# Create VM Array
	$VMArray = New-Object System.Collections.ArrayList
 
	if ($VMHostName)
	{
		# Get VMs
		$VMs = Get-SCVMHost -ComputerName $VMHostName | Get-VM
 
		# Clear VM Array
		$VMArray.Clear();
 
		foreach ($VM in $VMs)
		{
			# Get VM Subname
			$VMName = $VM.Name
			$VMSubName = $VMName.Substring(0,(($VMName.Length)-2))
 
			# Find Similar VMs
			$SimilarVMs = $VMs | Where Name -like "$VMSubName*"
 
			# Similar VM Count
			$SimilarVMCount = $SimilarVMs.Count
 
			if ($SimilarVMCount -gt "1")
			{
				foreach ($SimilarVM in $SimilarVMs)
				{
					$SimilarVMName = $SimilarVM.Name
					if ($VMArray.Contains("$SimilarVMName") -ne $True)
					{
						# Update VM Array
						$UpdateVMArray = $VMArray.Add("$SimilarVMName")
 
						# VM Total Size
						$VMTotalSize = [math]::round(($SimilarVM.TotalSize/1GB), 0)
 
						$Properties = New-Object Psobject
						$Properties | Add-Member Noteproperty Name $SimilarVM.Name
						$Properties | Add-Member Noteproperty VMHost $SimilarVM.VMHost.Name
						$Properties | Add-Member Noteproperty Cluster $Cluster.Name
						$Properties | Add-Member Noteproperty Cloud $SimilarVM.Cloud.Name
						$Properties | Add-Member Noteproperty UserRole $SimilarVM.UserRole.Name
						$Properties | Add-Member Noteproperty CPUCount $SimilarVM.CPUCount
						$Properties | Add-Member Noteproperty Memory $SimilarVM.Memory
						$Properties | Add-Member Noteproperty TotalSize $VMTotalSize
						$Properties | Add-Member Noteproperty BootDiskResource $SimilarVM.DiskResources[0].Name
						$Properties | Add-Member Noteproperty Status $SimilarVM.Status
						$Properties | Add-Member Noteproperty HasVirtualFibreChannelAdapters $SimilarVM.HasVirtualFibreChannelAdapters
						$Properties | Add-Member Noteproperty HasPassthroughDisk $SimilarVM.HasPassthroughDisk
						$Properties | Add-Member Noteproperty HasSharedStorage $SimilarVM.HasSharedStorage
						Write-Output $Properties
					}
				}
			}
		}
	}
	else
	{
		if ($ClusterName)
		{
			# Get Clusters
			$Clusters = Get-SCVMHostCluster -Name "$ClusterName"
		}
		else
		{
			# Get Clusters
			$Clusters = Get-SCVMHostCluster
		}
 
		foreach ($Cluster in $Clusters)
		{
			# Get VMs
			$VMs = Get-SCVMHost -VMHostCluster $Cluster | Get-VM
 
			# Clear VM Array
			$VMArray.Clear();
 
			foreach ($VM in $VMs)
			{
				# Get VM Subname
				$VMName = $VM.Name
				$VMSubName = $VMName.Substring(0,(($VMName.Length)-2))
 
				# Find Similar VMs
				$SimilarVMs = $VMs | Where Name -like "$VMSubName*"
 
				# Similar VM Count
				$SimilarVMCount = $SimilarVMs.Count
 
				if ($SimilarVMCount -gt "1")
				{
					foreach ($SimilarVM in $SimilarVMs)
					{
						$SimilarVMName = $SimilarVM.Name
						if ($VMArray.Contains("$SimilarVMName") -ne $True)
						{
							# Update VM Array
							$UpdateVMArray = $VMArray.Add("$SimilarVMName")
 
							# VM Total Size
							$VMTotalSize = [math]::round(($SimilarVM.TotalSize/1GB), 0)
 
							$Properties = New-Object Psobject
							$Properties | Add-Member Noteproperty Name $SimilarVM.Name
							$Properties | Add-Member Noteproperty VMHost $SimilarVM.VMHost.Name
							$Properties | Add-Member Noteproperty Cluster $Cluster.Name
							$Properties | Add-Member Noteproperty Cloud $SimilarVM.Cloud.Name
							$Properties | Add-Member Noteproperty UserRole $SimilarVM.UserRole.Name
							$Properties | Add-Member Noteproperty CPUCount $SimilarVM.CPUCount
							$Properties | Add-Member Noteproperty Memory $SimilarVM.Memory
							$Properties | Add-Member Noteproperty TotalSize $VMTotalSize
							$Properties | Add-Member Noteproperty BootDiskResource $SimilarVM.DiskResources[0].Name
							$Properties | Add-Member Noteproperty Status $SimilarVM.Status
							$Properties | Add-Member Noteproperty HasVirtualFibreChannelAdapters $SimilarVM.HasVirtualFibreChannelAdapters
							$Properties | Add-Member Noteproperty HasPassthroughDisk $SimilarVM.HasPassthroughDisk
							$Properties | Add-Member Noteproperty HasSharedStorage $SimilarVM.HasSharedStorage
							Write-Output $Properties
						}
					}
				}
			}
		}
	}
}

You can define Cluster and Hyper-V Host in function to minimize scope.

For Hyper-V Host Specific Search:

Get-SimilarVM -VMHostName "VMHOST01"

For Cluster Specific Search:

Get-SimilarVM -ClusterName "VMHOSTCluster01"

Searching in all clusters:

Get-SimilarVM

You can customize output to see what you need.


Posted in Virtual Machine Manager, Windows Powershell | No Comment | 4,555 views | 19/02/2014 18:21

You can use following script to get VMs with Passthrough Disks on SCVMM 2012 R2.

$VMs = Get-VM | Where HasPassthroughDisk

Then you can get virtual machine hardware information:

$VMs | ft Name,Status,CpuCount,Memory,TotalSize

You will see pretty good output :)


Posted in Virtual Machine Manager, Windows Powershell | No Comment | 1,314 views | 19/02/2014 18:16

You can use following script to get VMs with vHBA on SCVMM 2012 R2.

$VMs = Get-VM | Where HasVirtualFibreChannelAdapters

Then you can get virtual machine hardware information:

$VMs | ft Name,Status,CpuCount,Memory,TotalSize

You will see pretty good output :)


Posted in Windows Powershell, Windows Server | No Comment | 1,139 views | 19/02/2014 17:44

This is a simple Telnet Function for switch management purposes.

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# Telnet Function
Function Get-Telnet
{   param (
        [Parameter(ValueFromPipeline=$true)]
        [String[]]$Commands,
        [string]$RemoteHost,
        [string]$Port = "23",
        [int]$WaitTime = 1000
    )
 
	# Attach to the remote device, setup streaming requirements
    $Socket = New-Object System.Net.Sockets.TcpClient($RemoteHost, $Port)
    if ($Socket)
    {   $Stream = $Socket.GetStream()
        $Writer = New-Object System.IO.StreamWriter($Stream)
        $Buffer = New-Object System.Byte[] 1024 
        $Encoding = New-Object System.Text.AsciiEncoding
 
        # Now start issuing the commands
        foreach ($Command in $Commands)
        {   $Writer.WriteLine($Command) 
            $Writer.Flush()
            Start-Sleep -Milliseconds $WaitTime
        }
 
		# All commands issued, but since the last command is usually going to be
        # the longest let's wait a little longer for it to finish
        Start-Sleep -Milliseconds ($WaitTime * 4)
        $Result = ""
 
		# Save all the results
        while($Stream.DataAvailable) 
        {   $Read = $Stream.Read($Buffer, 0, 1024) 
            $Result += ($Encoding.GetString($Buffer, 0, $Read))
        }
    }
    else     
    {   $Result = "Unable to connect to host: $($RemoteHost):$Port"
    }
 
	# Done
    $Result
}

I got the source code from this web page:

Modified a few parts to use in my environment.