Extract ESX hosts serial numbers – vCLI

If you ever need to extract serial numbers from ESX hosts, the Power shell script below does the job. It will extract the serial numbers into a csv file.

Copy and paste the script below into a text editor and save it as a poweshell script. (.ps1) file extension.


#start of function
function Get-VMHostWSManInstance {
 param (
 [Parameter(Mandatory=$TRUE,HelpMessage="VMHosts to probe")]
[Parameter(Mandatory=$TRUE,HelpMessage="Class Name")]
$omcBase = "http://schema.omc-project.org/wbem/wscim/1/cim-schema/2/"
 $dmtfBase = "http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/"
 $vmwareBase = "http://schemas.vmware.com/wbem/wscim/1/cim-schema/2/"
if ($ignoreCertFailures) {
 $option = New-WSManSessionOption -SkipCACheck -SkipCNCheck -SkipRevocationCheck
 } else {
 $option = New-WSManSessionOption
 foreach ($H in $VMHost) {
 if ($credential -eq $null) {
 $hView = $H | Get-View -property Value
 $ticket = $hView.AcquireCimServicesTicket()
 $password = convertto-securestring $ticket.SessionId -asplaintext -force
 $credential = new-object -typename System.Management.Automation.PSCredential -argumentlist $ticket.SessionId, $password
 $uri = "https`://" + $h.Name + "/wsman"
 if ($class -cmatch "^CIM") {
 $baseUrl = $dmtfBase
 } elseif ($class -cmatch "^OMC") {
 $baseUrl = $omcBase
 } elseif ($class -cmatch "^VMware") {
 $baseUrl = $vmwareBase
 } else {
 throw "Unrecognized class"
 Get-WSManInstance -Authentication basic -ConnectionURI $uri -Credential $credential -Enumerate -Port 443 -UseSSL -SessionOption $option -ResourceURI "$baseUrl/$class"
#end of function
#start of script
Get-VMHost | ForEach-Object {
 $VMHost = $_
 $PhysicalPackage = Get-VMHostWSManInstance -VMHost $_ -class CIM_PhysicalPackage -ignoreCertFailures -credential $Credential | `
 Where-Object {$_.ElementName -eq "Chassis"}
 $Report = "" | Select-Object -Property VMHost,SerialNumber
 $Report.VMHost = $VMHost.Name
 $Report.SerialNumber = $PhysicalPackage.SerialNumber
} | Export-Csv -NoTypeInformation -UseCulture -Path c:\EsxSerialNumbers.csv 
#end of script



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