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Active Directory - Creating Install From Media dump

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 function Backup-ActiveDirectoryIFM
{
    param (
    [string]$IFMPath,
    [switch]$NoDefrag
    )
    $errorAction = 'stop'
    $minimumFreeSpace = 0.5TB
    $Mode = 'Full'
    if (!$IFMPath)
    {
    $driveObject = Get-PSDrive |
        ? {
    $_.Free
        } |
    Sort-Object -Descending Free |
    Select-Object -First 1
    if ($driveObject.Free -lt $minimumFreeSpace)
        {
    Write-Error "Drive with largest free space $($driveObject.Name): has only $([int]($driveObject.Free/1GB))GB free, which is less than the required minimum of $([int]($minimumFreeSpace/1GB))GB."
        }
    $now = Get-Date
    $todayString = $now.ToString('yyyy-MM-dd')
    $IFMPath = "E:\NTDS_$todayString"  ## This is where the IFM media set will be created
    }
    if ($noDefrag)
    {
    $NoDefragString = 'NoDefrag'
    }
    Write-Progress -Activity "Create IFM $NoDefragString" -Status $IFMPath
    ntdsutil.exe 'activate instance ntds' ifm "create sysvol $Mode $NoDefragString $IFMPath" q q q | 
    Tee-Object -Variable IFMResult
    $global:__IFMResult = $IFMResult
}

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