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ExpandVmDiskSpace.ps1
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ExpandVmDiskSpace.ps1
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# This script can be used to expand the size of C drive on a device when the vSphere hosts datastore has more than 15% space free to perform the expansion
# If the datastore has less than 15% free space you will get an email if you define the email values when prompted
$Credential = Get-Credential -Message "Enter your vSphere admin credentials"
$SmtpServer = Read-Host -Prompt "If you are going to use the send email feature, enter your SMTP server: "
If ($SMTPServer.Length -gt 2) {
$To = Read-Host -Prompt "Enter your TO email address: "
$From = Read-Host -Prompt "Enter your FROM email address: "
$MailCred = Read-Host -Rrompt "Enter your email credentials"
} # End If
[Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]'Tls11,Tls12'
# Get-VMWareDatastoreSize
Function Get-VMWareDatastoreSize {
[CmdletBinding(DefaultParameterSetName="Credential")]
param(
[ValidateNotNull()]
[System.Management.Automation.PSCredential]
[System.Management.Automation.Credential()]
[Parameter(ParameterSetName="Credential")]
$Credential = [System.Management.Automation.PSCredential]::Empty,
[Parameter(
ParameterSetName="BasicAuth",
Position=0,
Mandatory=$True,
ValueFromPipeline=$False,
HelpMessage="Enter the username to authenticate to the vSphere server with. EXAMPLE: mr.derp")] # End Parameter
[String]$Username,
[Parameter(
ParameterSetName="BasicAuth",
Position=1,
Mandatory=$True,
ValueFromPipeline=$False,
HelpMessage="Enter the password for the vSphere user account you defined. EXAMPLE: Password123!")] # End Parameter
[SecureString]$Password,
[Parameter(
Position=1,
Mandatory=$False,
ValueFromPipeline=$False,
HelpMessage="Define the vSphere server to expand this disk on. EXAMPLE: vsphere.domain.com")] # End Parameter
[ValidateScript({Test-Connection -BufferSize 32 -Count 2 -ComputerName $_ -Quiet})]
[String[]]$Server,
[Parameter(
Position=2,
Mandatory=$False,
ValueFromPipeline=$False
#HelpMessage="Enter the security group(s) required to authenticate to the vSphere servers `nEXAMPLE: DOMAIN\vSphere Admins "
)] # End Parameter
[String[]]$Group,
[Parameter(
Mandatory=$False,
ValueFromPipeline=$False,
HelpMessage="Increase the size of the low space disk by this many GigaBytes (50Gb limit). `nEXAMPLE: 30")] # End Parameter
[Switch][Bool]$SendEmailNotification,
[Parameter(
ParameterSetName='BasicAuth',
Mandatory=$False
)] # End Parameter
[Switch][Bool]$UseBasicAuth
) # End param
If (!(Test-Connection -BufferSize 32 -ComputerName 1.1.1.1 -Count 2 -Quiet)) {
Throw "[x] NO INTERNET: This cmdlet requires internet. "
} # End If
Write-Verbose "Verifying vSphere group membership"
$CurrentUserId = [Security.Principal.WindowsIdentity]::GetCurrent()
$GroupMembership = $CurrentUserId.Groups | ForEach-Object {
$_.Translate([Security.Principal.NTAccount])
} # End ForEach-Object
ForEach ($G in $Group) {
If (!($GroupMembership.Value.Contains($G))) {
Throw "[x] $($CurrentUserId.Name) does not have permissions to access vSphere"
} # End If
} # End ForEach
If ((Get-PackageProvider -Name Nuget).Version -lt 2.8.5.201) {
Try {
Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force -Confirm:$False
} Catch {
Throw $Error
} # End Try Catch
} # End If
Write-Verbose "Installing required modules"
$ModuleNames = "VMWare.PowerCLI","VMWare.VimAutomation.Core"
If (!(Get-Module -ListAvailable -Name $ModuleNames -Verbose:$False)) {
Write-Verbose "Installing VMWare.PowerCLI module"
Install-Module -Name $ModuleNames -Force -Confirm:$False -Verbose:$False
} # End If
Write-Verbose "Importing required modules"
Import-Module -Name $ModuleNames -Force -Verbose:$False -ErrorAction Stop
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCeip $False -DisplayDeprecationWarnings $False -Scope AllUsers -Confirm:$False | Out-Null
ForEach ($VIServer in $Server) {
Write-Verbose "Connecting to $VIServer"
Try {
If ($PSCmdlet.ParameterSetName -eq 'Credential') {
Write-Verbose "Connecting using -Credential specified"
Connect-VIServer -Server $VIServer -Credential $Credential -Force -ErrorAction Stop | Out-Null
} ElseIf ($UseBasicAuth.IsPresent) {
Write-Verbose "Connecting using Basic Authentication"
$Password = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($([System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Password)))
Connect-VIServer -Server $VIServer -User $Username -Password $Password -Force -ErrorAction Stop | Out-Null
Remove-Variable -Name Password
} Else {
Write-Verbose "Connecting using a manual credential object"
$Credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList @($Username, $Password)
Connect-VIServer -Server $VIServer -Credential $Credential -Force -ErrorAction Stop | Out-Null
} # End If ElseIf Else
} Catch {
Throw "[x] Could not connect to vCenter $VIServer"
} # Try Catch
Write-Verbose "Getting the size of vsphere data stores"
$VM = Get-VM -Name "$env:COMPUTERNAME.$((Get-CimInstance -ClassName Win32_ComputerSystem).Domain)" -ErrorAction Stop
$Results = Get-Datastore -VM $VM.Name -ErrorAction Stop | Select-Object -Property @{N="DataStoreName";E={$_.Name}},@{N="Percentage Free Space(%)";E={[math]::Round(($_.FreeSpaceGB)/($_.CapacityGB)*100,2)}}
$Results = $Results | Where-Object -FilterScript { $_.'Percentage Free Space(%)' -le 15 } | Select-Object -Property 'DataStoreName','Percentage Free Space(%)'
If ($Results -and $SendEmailNotification.IsPresent) {
$Css = @"
<style>
table {
font-family: verdana,arial,sans-serif;
font-size:11px;
color:#333333;
border-width: 1px;
border-color: #666666;
border-collapse: collapse;
}
th {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
background-color: #dedede;
}
td {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
background-color: #ffffff;
}
</style>
"@ # End CSS
$PreContent = "<Title>NOTIFICATION: Low Datastore Disk Space</Title>"
$NoteLine = "This Message was Sent on $(Get-Date -Format 'MM/dd/yyyy HH:mm:ss')"
$PostContent = "<br><p><font size='2'><i>$NoteLine</i></font>"
$MailBody = $Results | ConvertTo-Html -Head $Css -PostContent $PostContent -PreContent $PreContent -Body "<br>$($env:COMPUTERNAME) does not have enough space to perform a Windows Update. We have put off expanding the drive of this device because the datastore it is on has less than 15% free space left on it.<br>The below table contains information on the $VCServer datastores.<br><br><hr><br><br>" | Out-String
Send-MailMessage -Priority High -From $From -SmtpServer $SmtpServer -To $To -Subject "ALERT: Low Disk Space $($VCServer) Datastore" -BodyAsHtml -Body "$MailBody" -Credential $MailCred
Return $Results
Disconnect-VIServer -Server * -Force -Confirm:$False
Break
} ElseIf ($Results) {
Return $Results
Write-Output "[*] The above output shows datastore information with low disk space"
Disconnect-VIServer -Server * -Force -Confirm:$False
Break
} Else {
Write-Output "No datastores with less than 15% disk free on $VIServer"
} # End If Else If Else
Disconnect-VIServer -Server * -Force -Confirm:$False
} # End ForEach
} # End Function Get-VMWareDatastoreSize
# Resize-VMsDiskSpace
Function Resize-VMsDiskSpace {
[CmdletBinding(DefaultParameterSetName='Credential')]
param(
[ValidateNotNull()]
[System.Management.Automation.PSCredential]
[System.Management.Automation.Credential()]
[Parameter(ParameterSetName="Credential")]
$Credential = [System.Management.Automation.PSCredential]::Empty,
[Parameter(
Position=0,
Mandatory=$True,
ValueFromPipeline=$False,
HelpMessage="Enter the number of Gigabytes to expand the disk space by. EXAMPLE: 25")] # End Parameter
[Int32]$SizeGB,
[Parameter(
ParameterSetName="BasicAuth",
Position=1,
Mandatory=$True,
ValueFromPipeline=$False,
HelpMessage="Enter the username to authenticate to the vSphere server with. EXAMPLE: mr.derp")] # End Parameter
[String]$Username,
[Parameter(
ParameterSetName="BasicAuth",
Position=2,
Mandatory=$True,
ValueFromPipeline=$False,
HelpMessage="Enter the password for the vSphere user account you defined. EXAMPLE: Password123!")] # End Parameter
[SecureString]$Password,
[Parameter(
Position=3,
Mandatory=$False,
ValueFromPipeline=$False,
HelpMessage="Define the vSphere server to expand this disk on. EXAMPLE: vsphere.domain.com")] # End Parameter
[ValidateScript({Test-Connection -BufferSize 32 -Count 2 -ComputerName $_ -Quiet})]
[String[]]$Server,
[Parameter(
Position=4,
Mandatory=$False,
ValueFromPipeline=$False
#HelpMessage="Enter the security group(s) required to authenticate to the vSphere servers `nEXAMPLE: DOMAIN\vSphere Admins "
)] # End Parameter
[String[]]$Group,
[Parameter(
ParameterSetName='BasicAuth',
Mandatory=$False
)] # End Parameter
[Switch][Bool]$UseBasicAuth
) # End param
Write-Verbose "Verifying vSphere group membership"
$CurrentUserId = [Security.Principal.WindowsIdentity]::GetCurrent()
$GroupMembership = $CurrentUserId.Groups | ForEach-Object {
$_.Translate([Security.Principal.NTAccount])
} # End ForEach-Object
ForEach ($G in $Group) {
If (!($GroupMembership.Value.Contains($G))) {
Throw "[x] $($CurrentUserId.Name) does not have permissions to access vSphere"
} # End If
} # End ForEach
If ((Get-PackageProvider -Name Nuget).Version -lt 2.8.5.201) {
Try {
Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force -Confirm:$False
} Catch {
Throw $Error
} # End Try Catch
} # End If
Write-Verbose "Importing required modules"
$ModuleNames = "VMware.VimAutomation.Core"
If (!(Get-Module -ListAvailable -Name $ModuleNames)) {
Instal-Module -Name $ModuleNames -Force -Confirm:$False
} # End If
Import-Module -Name $ModuleNames -Force -ErrorAction Stop
Write-Verbose "Connecting to $Server"
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCeip $False -DisplayDeprecationWarnings $False -Scope AllUsers -Confirm:$False | Out-Null
Try {
If ($PSCmdlet.ParameterSetName -eq 'Credential') {
Write-Verbose "Connecting using -Credential"
Connect-VIServer -Server $Server -Credential $Credential -Force -ErrorAction Stop | Out-Null
} ElseIf ($UseBasicAuth.IsPresent) {
Write-Verbose "Connecting using Basic Auth"
$Password = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($([System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Password)))
Connect-VIServer -Server $Server -User $Username -Password $Password -Force -ErrorAction Stop | Out-Null
Remove-Variable -Name Password
} Else {
Write-Verbose "Connecting using a Credential custom built"
$Credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList @($Username, $Password)
Connect-VIServer -Server $Server -Credential $Credential -Force -ErrorAction Stop | Out-Null
} # End If ElseIf Else
} Catch {
Throw "[x] Could not connect to vCenter $Server"
} # Try Catch
$Domain = (Get-CimInstance -ClassName Win32_ComputerSystem).Domain
$HardDisk = Get-HardDisk -VM "$env:COMPUTERNAME.$Domain"
$HardDisk = $HardDisk | ForEach-Object { If ($_.Filename -notmatch "^(.*)_[0-9].vmdk") { $_ } } | Select-Object -First 1
$Capacity = $HardDisk.CapacityGB
Write-Verbose "Expanding the hard disk on $env:COMPUTERNAME"
$HardDisk | Set-HardDisk -CapacityGB ($Capacity + $SizeGB) -Confirm:$False
Write-Verbose "Updating the host storage cache to obtain the most up to date results"
Update-HostStorageCache
$ExistingSize = (Get-Partition -DriveLetter C).Size
$MaxSize = (Get-PartitionSupportedSize -DriveLetter C).SizeMax
If ($CurrentSize -ge $MaxSize) {
Write-Output "[i] Disk is already at it's max available size"
} Else {
Resize-Partition -DriveLetter C -Size $MaxSize -Confirm:$False
Get-Partition -DriveLetter C | Select-Object -Property DriveLetter,Size,Type,Offset,PartitionNumber
} # End If Else
Disconnect-VIServer -Server * -Force -Confirm:$False
} # End Resize-VMsDiskSpace
Get-VMWareDataStoreSize -Credential $Credential -Server $vCenterServer -Verbose
$LowStorage = Get-VMWareDataStoreSize -Credential $Credential -Verbose -SendEmailNotification -ErrorAction Continue
If ($Null -eq $LowStorage) {
$MachineName = "$env:COMPUTERNAME.$((Get-CimInstance -ClassName Win32_ComputerSystem).Domain)"
Resize-VMsDiskSpace -SizeGB 30 -Credential $Credential -Server $vCenterServer -ErrorAction Stop -Verbose
} Else {
Write-Output "[x] Datastore $env:COMPUTERNAME is on has less than 15% disk space full"
} # End If Else