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| <# | |
| .SYNOPSIS | |
| Collect configuration metrics for a VMHost, Cluster, Datacenter, or vCenter. For each VM Host found, these metrics are collected: | |
| -Parent object(Cluster, Datacenter) | |
| -Hardware model | |
| -ESXi build | |
| -IP address | |
| -VMs on host | |
| -physical CPUs(pCPU) on host | |
| -virtual CPUs(vCPU) allocated | |
| -vCPU to pCPU ratio | |
| .DESCRIPTION | |
| Connect to vCenter with Connect-VIServer before using this script. | |
| Written with PowerShell v3.0 and PowerCLI 6.0(2548067). | |
| .EXAMPLE | |
| .\Get-VMHostMetrics -cluster "mycluster" | |
| #> | |
| [cmdletbinding()] | |
| Param ( | |
| [Parameter(ParameterSetName="VMHost",Mandatory=$true,Position=0)] | |
| [string]$vmhost, | |
| [Parameter(ParameterSetName="Cluster",Mandatory=$true)] | |
| [string]$cluster, | |
| [Parameter(ParameterSetName="Datacenter",Mandatory=$true)] | |
| [string]$datacenter, | |
| [Parameter(ParameterSetName="vCenter",Mandatory=$true)] | |
| [switch]$vcenter, | |
| [switch]$report = $true, | |
| [string]$reportName = "$($PSScriptRoot)\Reports\VMHostMetrics_" | |
| ) | |
| function GetHostMetrics($h) { | |
| #Determine configuration metrics | |
| $view = $h | Get-View | |
| $vms = $h | Get-VM | |
| $totalCPU = ( $vms | Measure-Object -Sum -Property NumCPU).Sum | |
| if(!$totalCPU) { $totalCPU = 0 } | |
| $ratio = "{0:N3}" -f ($totalCPU/$h.NumCPU) | |
| #Create an ordered PS Custom Object and store the metrics | |
| $results = [pscustomobject][ordered]@{ | |
| VMHost = [string]$h.name | |
| Parent = [string]$h.Parent | |
| Model = [string]$h.Model | |
| Build = [int]$view.Config.Product.Build | |
| IPAddress = ($h | Get-VMHostNetwork).VirtualNic | Where-Object{$_.ManagementTrafficEnabled} | Select-Object -ExpandProperty IP | |
| VMs = [int]$vms.count | |
| pCPU = [int]$h.NumCPU | |
| vCPU = [int]$totalCPU | |
| Ratio = [double]$ratio | |
| } | |
| return $results | |
| } | |
| #Switch the Parameter Set and collect the appropriate VMware object | |
| $all = @() | |
| try { | |
| switch($PSCmdlet.ParameterSetName) { | |
| "VMHost" { | |
| #Collect metrics from one host and append to $all | |
| $h = Get-VMHost $vmhost -ErrorAction Stop; $all += GetHostMetrics $h | |
| $reportName += $vmhost | |
| } | |
| "Cluster" { | |
| #Loop through each host in the cluster, collect metrics, append to $all | |
| $h = Get-Cluster $cluster -ErrorAction Stop | Get-VMHost | sort Name | |
| $reportName += $cluster | |
| foreach($_h in $h) { Write-Host "$cluster - $_h - Collecting data"; $all += GetHostMetrics $_h } | |
| } | |
| "Datacenter" { | |
| #Loop thrugh each host in the datacenter, collect metrics, append to $all | |
| $h = Get-Datacenter $datacenter -ErrorAction Stop | Get-VMHost | sort Name | |
| $reportName += $datacenter | |
| foreach($_h in $h) { Write-Host "$datacenter - $_h - Collecting data"; $all += GetHostMetrics $_h } | |
| } | |
| "vCenter" { | |
| #Loop all hosts in vCenter, collect metrics, append to $all | |
| $h = Get-VMHost -ErrorAction Stop | Sort Name | |
| $reportName += "vCenter" | |
| foreach($_h in $h) { Write-Host "$_h - Collecting data"; $all += GetHostMetrics $_h } | |
| } | |
| } | |
| } | |
| catch { Write-Host -ForegroundColor Red $_.Exception.Message; Exit } | |
| $all | sort VMHost | |
| #Export report | |
| if($report -eq $true) { | |
| $reportName += "_$(Get-Date -Format yyyyMMdd_HHmmss).csv" | |
| $all | Export-csv $reportName -notype | |
| Write-Host "Metrics have been written to $reportName" | |
| } |
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