<#
.SYNOPSIS
Simple HTML report generator for UP/DOWN status of servers.
.DESCRIPTION
Create a simple UP/DOWN report, with length of uptime report in a simple HTML
report. Also includes a "lowest" disk alert, showing you whichever disk has the
lowest amount of disk space and how much that is (bar graph). There is also
a detailed disk report you can click on to view.
Will accept an secondary credential and use that to gather information. The
username and password are stored in an encrypted file in the path you designate.
Since this script is intended to be run from a scheduled task, it is important
to modify the PARAM section to suit your needs.
How to Run:
Make sure to run the script once on the server you intend to run the scheduled
task. The script will prompt for the specified credential password on the first
run (or any time you change the credential username). After that first run it
will run without prompting.
*** IMPORTANT ***
Required: Modify the $Key variable (line 74) to get unique encryption on your
credentials.
.PARAMETER Name
Will accept a comma seperated array of server names and if not specified default
to load the server names from a text file. Make sure to edit the Param section
to fit your environment. Will also accept object input from Get-ADComputer.
.PARAMETER AlertThreshold
A number representing the % that free space has to go below to trigger an alert
(changing the display to red).
.PARAMETER Path
The output path and file name for the HTML report. Make sure to edit the Param
section to fit your environment.
.PARAMETER Credential
Specify the alternative credential
.PARAMETER PathToCred
Path where the script will store the encrypted password file.
.EXAMPLE
.\Uptime.ps1
Produces the report based on the servers in C:\utils\servers.txt and will save the
report at c:\utils\uptime.html
.EXAMPLE
.\Uptime.ps1 -Servers server1,server2,server3 -path \\webserver\share\uptimereport.html
Will create the uptime report for servers 1,2 and 3 and save the report at
\\webserver\share\uptimereport.html
.EXAMPLE
.\Uptime.ps1 -Servers server1,server2,server3 -AlertThreshold 25
Will create the uptime report for servers 1,2 and 3 and if the lowest disk free percentage
is below 25% it will show up in red.
.LINK
http://community.spiceworks.com/scripts/show/1641-simple-server-uptime-report
.NOTES
Author: Martin Pugh
Twitter: @TheSurlyAdm1n
Spiceworks: Martin9700
Blog: www.thesurlyadmin.com
Changelog
1.7 Added the ability to use alternative credentials. Added quite a bit of error
handling and verbose output (if wanted). Added the ability for the script to
accept pipeline input from Get-ADComputer as well as other pipeline items.
1.6 Added remaining disk information in a more detailed report below the primary
status table. Click on the "Show Disk Detail Report" link to display the detailed
report.
1.5 Added the "Lowest Disk Status" column. The script will now look at all disk
volumes and report on the one with the lowest free disk space. It will so the free
space as a percentage of the total. By default if that percentage drops below 10%
it will "alert" and show that percentage in red. This setting is configurable
using the -AlertThreshold parameter.
1.0 Initial release
#>
[CmdletBinding()]
Param (
[Parameter(ValueFromPipeline=$true,
ValueFromPipelinebyPropertyName=$true)]
[Alias("Servers")]
[string[]]$Name = (Get-Content "c:\utils\servers.txt"),
[int]$AlertThreshold = 10,
[string]$Path = "c:\utils\uptime.html",
[string]$Credential = "surly\administrator",
[string]$PathToCred = "c:\utils"
)
Begin {
Function Get-Credentials {
Param (
[String]$AuthUser = $env:USERNAME
)
$Key = [byte]29,36,18,74,72,75,85,52,73,44,0,21,98,76,99,28
#Build the path to the credential file
$CredFile = $AuthUser.Replace("\","~")
$File = $PathToCred + "\Credentials-$CredFile.crd"
#And find out if it's there, if not create it
If (-not (Test-Path $File))
{ (Get-Credential $AuthUser).Password | ConvertFrom-SecureString -Key $Key | Set-Content $File
}
#Load the credential file
$Password = Get-Content $File | ConvertTo-SecureString -Key $Key
$AuthUser = (Split-Path $File -Leaf).Substring(12).Replace("~","\")
$AuthUser = $AuthUser.Substring(0,$AuthUser.Length - 4)
$Credential = New-Object System.Management.Automation.PsCredential($AuthUser,$Password)
Return $Credential
}
Write-Verbose "$(Get-Date): Script begins!"
#Define static HTML
$HeaderHTML = @"
<html>
<head>
<style type='text/css'>
body { background-color:#DCDCDC;
}
table { border:1px solid gray;
font:normal 12px verdana, arial, helvetica, sans-serif;
border-collapse: collapse;
padding-left:30px;
padding-right:30px;
}
th { color:black;
text-align:left;
border: 1px solid black;
font:normal 16px verdana, arial, helvetica, sans-serif;
font-weight:bold;
background-color: #6495ED;
padding-left:6px;
padding-right:6px;
}
td.up { background-color:#32CD32;
border: 1px solid black;
}
td.down { background-color:#B22222;
border: 1px solid black;
}
td { border: 1px solid black;
padding-left:6px;
padding-right:6px;
}
div.red { background-color:#B22222;
float:left;
text-align:right;
}
div.green { background-color:#32CD32;
float:left;
}
div.free { background-color:#7FFF00;
float:left;
text-align:right;
}
a.detail { cursor:pointer;
color:#1E90FF;
text-decoration:underline;
}
</style>
</head>
<body>
<script type='text/javascript'>
<!--
window.onload=function(){
document.getElementById("ShowHideLink").innerHTML="<h6>Show Disk Detail Report</h6>"
document.getElementById("diskdetail").style.visibility="hidden"
}
function ShowHide() {
if (document.getElementById("diskdetail").style.visibility=="visible")
{
document.getElementById("diskdetail").style.visibility="hidden"
document.getElementById("ShowHideLink").innerHTML="<h6>Show Disk Detail Report</h6>"
}
else
{
document.getElementById("diskdetail").style.visibility="visible"
document.getElementById("ShowHideLink").innerHTML="<h6>Hide Disk Detail Report</h6>"
}
}
//-->
</script>
<h1>Server Uptime Status Report</h1>
<p>
<table class="Main">
<tr><th style="width:175px;">Server Name</th><th style="width:125px;">Status</th><th style="width:475px;">Lowest Disk Status</th></tr>
"@
$DiskDetailHeaderHTML = @"
</table>
<a id="ShowHideLink" class="detail" onClick="ShowHide()"></a>
<br>
<br>
<div id="diskdetail">
<h1>Disk Detail Report</h1><p>
"@
$FooterHTML = @"
</div>
</body>
</html>
"@
$AllComputers = @()
}
Process {
#Gather all computer names before processing
ForEach ($Computer in $Name)
{ $AllComputers += $Computer
}
}
End {
#Sort the servers by name, then start getting information
Write-Verbose "Sort server names and gather Credential information"
$Name = $Name | Sort
$DiskData = @()
If ($Credential)
{ $Cred = Get-Credentials $Credential
}
ForEach ($Computer in $AllComputers)
{ Write-Verbose "Testing $Computer..."
$ErrorReport = $null
If (Test-Connection $Computer -Quiet)
{ #Set parameters for splat, determine if checking local
$CredParameter = @{
ComputerName = $Computer
ErrorAction = "Stop"
}
If ($Computer.ToUpper() -notlike "*$($env:COMPUTERNAME.ToUpper())*" -and $Cred)
{ $CredParameter.Add("Credential",$Cred)
}
#Get uptime information
Try {
$WMI = Get-WmiObject Win32_OperatingSystem @CredParameter
If ($WMI)
{ $Uptime = New-TimeSpan -Start $($WMI.ConvertToDateTime($WMI.LastBootUpTime)) -End (Get-Date)
$UpText = "<td class=""up"">$($Uptime.Days)d, $($Uptime.Hours)h, $($Uptime.Minutes)m</td>"
}
Else
{ $UpText = "<td class=""up"">Up</td>"
}
#Get disk information and pretty up the data
$Disks = Get-WmiObject Win32_LogicalDisk -Filter "DriveType=3" @CredParameter | Select `
@{LABEL="Server";EXPRESSION={$Computer}},
@{LABEL="DriveLetter";EXPRESSION={$_.DeviceID}},
@{LABEL="Size";EXPRESSION={[int]("{0:N0}" -f ($_.Size/1gb))}},
@{LABEL="FreeSize";EXPRESSION={[int]("{0:N0}" -f ($_.FreeSpace/1gb))}},
@{LABEL="perUsed";EXPRESSION={[int]("{0:N0}" -f ((($_.Size - $_.FreeSpace)/$_.Size)*100))}},
@{LABEL="perFree";EXPRESSION={[int]("{0:N0}" -f (100-(($_.Size - $_.FreeSpace)/$_.Size)*100))}},
VolumeName
$DiskData += $Disks
}
Catch {
Write-Verbose "Error encountered gathering information for $Computer"
$ErrorReport = $Error[0]
$Error.Clear | Out-Null
}
#Create the simple Status table
If ($ErrorReport)
{ $UpText = "<td class=""down"">WMI Error</td>"
$DiskHTML = "<div class=""red"">$($Error[0])</div>"
}
ElseIf ($Disks)
{ $LowDisk = $Disks | Sort FreeSize | Select -First 1
If ($LowDisk.perFree -le $AlertThreshold)
{ $FreeClass = "red"
}
Else
{ $FreeClass = "free"
}
$DiskHTML = "<div class=""green"" style=""width:$($LowDisk.perUsed)%"">$($LowDisk.DriveLetter) $($LowDisk.Size)gb ($($LowDisk.perUsed)% used)</div><div class=""$FreeClass"" style=""width:$($LowDisk.perFree)%"">$($LowDisk.FreeSize)gb free ($($LowDisk.perFree)%)</div>`n"
}
Else
{ $DiskHTML = ""
}
$DetailHTML += "<tr><td>$Computer</td>$UpText<td>$DiskHTML</td></tr>`n"
}
Else
{ $DetailHTML += "<tr><td>$Computer</td><td class=""down"">DOWN</td><td class=""down""></td></tr>`n"
}
}
#Disk Details Report
Write-Verbose "WMI data gathered, making the report"
$Servers = $DiskData | Select Server -Unique
ForEach ($Server in $Servers)
{ $Server = $Server.Server
$DiskDetailHTML += "<h3>$Server</h3>"
$DiskDetailHTML += "<table>"
$DiskDetailHTML += "<tr><th>Drive Letter</th><th>Volume Name</th><th>Total Disk Space</th><th>Used</th><th>Free</th><th style=""width:350px;"">Usage</th></tr>`n"
$Disks = $DiskData | Where { $_.Server -eq $Server } | Sort DriveLetter
ForEach ($Disk in $Disks)
{ $DiskDetailHTML += "<tr><td>$($Disk.DriveLetter)</td><td>$($Disk.VolumeName)</td><td>$($Disk.Size)gb</td><td>$($Disk.Size - $Disk.FreeSize)gb</td><td>$($Disk.FreeSize)gb</td>"
If ($Disk.perFree -le $AlertThreshold)
{ $FreeClass = "red"
}
Else
{ $FreeClass = "free"
}
$DiskDetailHTML += "<td><div class=""green"" style=""width:$($Disk.perUsed)%""> </div><div class=""$FreeClass"" style=""width:$($Disk.perFree)%"">$($Disk.perFree)%</div></td></tr>`n"
}
$DiskDetailHTML += "</table><br>`n"
}
#Combine all the HTML fragments and save to a file
$HTML = $HeaderHTML + $DetailHTML + $DiskDetailHeaderHTML + $DiskDetailHTML + $FooterHTML
$HTML | Out-File $Path
Write-Verbose "$(Get-Date): Script completed!"
}
to the forums!
