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Send system disk space utilization HTML report Email using PowerShell

This script generates system disk drive usage HTML reports using PowerShell. This is very handy for sending weekly or daily reports of servers in html or host it on web server for monitoring. In my case VDI team contacted me for creating a system Disk HTML reports for VDI and sending them to concerned VDI users as notification emails.

After scheduling and deployment of script, below is the screenshot of the Disk Utilization Report email example.

Send system disk space utilization HTML report Email using PowerShell Microsoft outlook email exchange server system desktop configuration vdi desktop hard disk freespace total used space.jpg

To fetch disk reports from multiple computers add their names in computers variable on line number 1. To send the email to concerned users add information on line 131 to 136.

Download this script DiskReport.ps1 here or it is also available on github.com/janviudapi.

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$computers = $env:COMPUTERNAME, 'testmachine2', 'ad001' #, '192.168.34.44'

function Get-DiskDetails
{
    [CmdletBinding()]
    param (
        [string]$Computer = $env:COMPUTERNAME
    )
    $cimSessionOptions = New-CimSessionOption -Protocol Default
    $query = "SELECT DeviceID, VolumeName, Size, FreeSpace FROM Win32_LogicalDisk WHERE DriveType = 3"
    $cimsession = New-CimSession -Name $Computer -ComputerName $Computer -SessionOption $cimSessionOptions
    Get-CimInstance -Query $query -CimSession $cimsession 
}

$newHtmlFragment = [System.Collections.ArrayList]::new()
foreach ($computer in $computers)
{
    $disks = Get-DiskDetails -Computer $computer 
    $diskinfo = @()
    foreach ($disk in $disks) {
        [int]$percentUsage = ((($disk.Size - $disk.FreeSpace)/1gb -as [int]) / ($disk.Size/1gb -as [int])) * 100  #(50/100).tostring("P")
        $bars = "<div style='background-color: DodgerBlue; height: 18px; width: $percentUsage%'><span>$percentUsage%</span></div>" 
        $diskInfo += [PSCustomObject]@{
            Volume = $disk.DeviceID
            VolumeName = $disk.VolumeName
            TotalSize_GB = $disk.Size / 1gb -as [int]
            UsedSpace_GB = ($disk.Size - $disk.FreeSpace)/1gb -as [int]
            FreeSpace_GB = [System.Math]::Round($disk.FreeSpace/1gb)
            Usage = "usage {0}"  -f $bars #, $percentUsage
        }
    }
    $htmlFragment = $diskInfo | ConvertTo-Html -Fragment
    $newHtmlFragment += $htmlFragment[0]
    $newHtmlFragment += "<tr><th class='ServerName' colspan='4'>$($computer.ToUpper())</th></tr>"
    $newHtmlFragment += $htmlFragment[2].Replace('<th>',"<th class='tableheader'>")

    $diskData =  $htmlFragment[3..($htmlFragment.count -2)]
    for ($i = 0; $i -lt $diskData.Count; $i++) {
        if ($($i % 2) -eq 0)
        {
            $newHtmlFragment += $diskData[$i].Replace('<td>',"<td class='td0'>")
        }
        else 
        {
            $newHtmlFragment += $diskData[$i].Replace('<td>',"<td class='td1'>")
        }
    }
    $newHtmlFragment += $htmlFragment[-1]
}
$newHtmlFragment = $newHtmlFragment.Replace("<td class='td0'>usage ", "<td class='usage'>")
$newHtmlFragment = $newHtmlFragment.Replace("<td class='td1'>usage ", "<td class='usage'>")
$newHtmlFragment = $newHtmlFragment.Replace('&lt;', '<')
$newHtmlFragment = $newHtmlFragment.Replace('&gt;', '>')
$newHtmlFragment = $newHtmlFragment.Replace('&#39', "'")

$html = @"
<html lang='en'>
    <head>
        <meta charset='UTF-8'>
        <meta http-equiv='X-UA-Compatible' content='IE=edge'>
        <meta name='viewport' content='width=device-width, initial-scale=1.0'>
        <title>Disk Usage Report</title>
        <style>
            body {
                font-family: Calibri, sans-serif, 'Gill Sans', 'Gill Sans MT', 'Trebuchet MS';
                background-color: whitesmoke;
            }
            .mainhead {
                margin: auto;
                width: 100%;
                text-align: center;
                font-size: xx-large;
                font-weight: bolder;
            }
            table {
                margin: 10px auto;
                width: 70%;
            }
            .ServerName {
                font-size: x-large;
                margin: 10px;
                text-align: left;
                padding: 10 0;
                color: DodgerBlue;
            }
            .tableheader {
                background-color: black;
                color: white;
                padding: 10px;
                text-align: left;
                /* font-size: large; */
                border-bottom-style: solid;
                border-bottom-color: darkgray;
            }
            td {
                background-color: white;
                border-bottom: 1px;
                border-bottom-style: solid;
                border-bottom-color: #404040;
            }

            .usage {
                background-color: SkyBlue ;
                width: 70%;
                color:  black;
            }

            span {
                color: black;
            }

            .td1 {
                background-color: #F0F0F0;
            }
        </style>
    </head>
    <body>
        <div class='mainhead'>
            <img style='vertical-align: middle;' src='data:image/jpeg;base64,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' alt='Disk Usage' width='50' height='50'/>
            Disk Utilization Report
        </div>
        <br>
        <div><i><b>Generated on: </b> $((Get-Date).DateTime)</i></div>
        $newHtmlFragment
    </body>
</html>
"@

$html > test.html

$from = 'no-reply@vcloud-lab.com'
$to = 'Patrick.Henighem@vcloud-lab.com'
$subject = 'Weekly disk utilization report'
$body = $html
$smtpServer = 'emailexchange.vcloud-lab.com'
$smtpPort = 587

Send-MailMessage -From $from -to $to -Subject $Subject -Body $body -BodyAsHtml -SmtpServer $smtpServer -Port $smtpPort

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