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ConvertTo-WWPN Function for FCAdapter WMI Class
Posted in Windows Powershell, Windows Server | No Comment | 2,068 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.



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