Get-InqWwn.ps1

<#
    .Synopsis
    Provides a mapping of Windows drive letters to WWNs using inq.exe from EMC

    .Description
    Gets all volumes in Windows and provides device ID, drive letter and WWN.

    You must have inq.exe available.

    .Parameter Path
    Path to inq.exe (defaults to the current directory)

    .Example
    C:\PS> Get-InqWwn

    DriveLetter DeviceID           WWN                              Product     
    ----------- --------           ---                              -------     
    C           \\.\PHYSICALDRIVE0 N/A                              Virtual disk
    S           \\.\PHYSICALDRIVE1 60000970000295700488533032313832 SYMMETRIX   
                \\.\PHYSICALDRIVE2 60000970000295700488533032423536 SYMMETRIX   
    T           \\.\PHYSICALDRIVE3 60000970000295700488533034393635 SYMMETRIX   


    .Author
    Freddie Sackur

    .Notes
    An obvious prerequisite is that you have already downloaded inq.exe.

    Usage is subject to the MIT license, viewable at https://opensource.org/licenses/MIT. No warranty 
    is provided. Copyright © 2017 Freddie Sackur

    .Link
    https://freddiesackur.wordpress.com/2017/10/08/wrapping-external-utilities-using-emcs-inq-exe-as-an-example/

    .Link
    ftp://ftp.emc.com/pub/symm3000/inquiry/

    .Link
    https://community.emc.com/thread/116665?start=0&tstart=0

#>
function Get-InqWwn {
    [CmdletBinding(DefaultParameterSetName='WWN')]
    [OutputType([psobject[]])]
    param(
        [Parameter()]
        [string]$Path = '.\inq.exe'
    )

    try {
        if (-not (Test-Path $Path -PathType Leaf -ErrorAction Stop)) {
            $InqPath = Join-Path $Path 'inq.exe'
        } else {
            $InqPath = $Path
        }
        $InqPath = (Resolve-Path $InqPath -ErrorAction Stop).Path
    } catch [System.Management.Automation.ItemNotFoundException] {
        throw New-Object System.Management.Automation.ItemNotFoundException ("Please provide the path to inq.exe")
    }

    $Output = New-Object 'System.Collections.Generic.List[psobject]'

    $WWNs = Invoke-Inq -WWN -Path $Path
    $WinVols = Invoke-Inq -WinVol -Path $Path

    foreach ($Disk in $WWNs) {
        $WinVol = $WinVols | ?{$_.DEVICE -eq $Disk.DEVICE}
        if ($WinVol) {
            Add-Member -InputObject $WinVol -MemberType NoteProperty -Name 'WWN' -Value (
                $Disk.WWN
            )
            $Output.Add($WinVol)
        } else {
            $Output.Add($Disk)
        }
    }

    $Output | select (
        @{Name = 'DriveLetter'; Expression = {$_.'WIN vol'}},
        @{Name = 'DeviceID'; Expression = {$_.DEVICE}},
        'WWN',
        @{Name = 'Product'; Expression = {$_.PROD}}
    )
}

<#
    .Synopsis
    Pull information about attached LUNs using inq.exe from EMC

    .Description
    Allows use of -WWN and -WinVol switches to retrieve device from within an OS to ensure that
    OS Support and Storage or Virtualisation teasm are talking about the same disk before making
    changes

    .Author
    Freddie Sackur

    .Notes
    An obvious prerequisite is that you have already downloaded inq.exe.

    Usage is subject to the MIT license, viewable at https://opensource.org/licenses/MIT. No warranty 
    is provided. Copyright © 2017 Freddie Sackur

    .Link
    https://freddiesackur.wordpress.com/2017/10/08/wrapping-external-utilities-using-emcs-inq-exe-as-an-example/

    .Link
    ftp://ftp.emc.com/pub/symm3000/inquiry/

    .Link
    https://community.emc.com/thread/116665?start=0&tstart=0

#>
function Invoke-Inq {
    [CmdletBinding(DefaultParameterSetName='WWN')]
    [OutputType([psobject[]])]
    param(
        [Parameter()]
        [string]$Path = '.\inq.exe',

        [Parameter(ParameterSetName='WWN')]
        [switch]$WWN,

        [Parameter(ParameterSetName='WinVol')]
        [switch]$WinVol
    )

    try {
        if (-not (Test-Path $Path -PathType Leaf -ErrorAction Stop)) {
            $InqPath = Join-Path $Path 'inq.exe'
        } else {
            $InqPath = $Path
        }
        $InqPath = (Resolve-Path $InqPath -ErrorAction Stop).Path
    } catch [System.Management.Automation.ItemNotFoundException] {
        throw New-Object System.Management.Automation.ItemNotFoundException ("Please provide the path to inq.exe")
    }

    $Output = New-Object 'System.Collections.Generic.List[psobject]'

    $args = (
        ('-' + $PSCmdlet.ParameterSetName.ToLower())
    )

    $Lines = & $InqPath $args 2>$null
    $Lines = $Lines | 
        select -Skip 6 |                #skip preamble
        where {$_ -notmatch '^-*$'}     #skip rows composed only of dashes
    
    $HeaderRow = $Lines[0]
    $Rows = $Lines[1..($Lines.Count)]
    
    $ColumnHeaders = $HeaderRow -split ':'
    
    foreach ($Row in $Rows) {
        $HT = @{}
        if ($PSVersionTable.PSVersion.Major -ge 3) {$HT = [ordered]@{}}

        $Values = $Row -split ':'
        for ($i=0; $i -lt $ColumnHeaders.Count; $i++) {
            $HT += @{
                $ColumnHeaders[$i].Trim() = $Values[$i].Trim()
            }
        }
        $Output.Add((New-Object psobject -Property $HT))
    }

    $Output.ToArray()
}