Getting vSphere Resource Pools by Datacenter

It’s been a busy few weeks. Between work and preparing the house for an imminent new baby, there hasn’t been much time for blogging. But that doesn’t mean I haven’t been scripting, I just haven’t written about them!

I was recently working on a script for a customer to automatically configure backup policies based on vSphere Resource Pools. This isn’t native to Rubrik, but I didn’t think it would take much to get it going with PowerCLI and the Rubrik PowerShell module. However, the PowerCLI command Get-ResourcePool doesn’t return any information as to which Datacenter it is in! See:

Not a problem in a single DC vCenter, but the customer I was working with had multiple DCs, clusters, a standard Resource Pool naming convention (I.E prod, devtest, etc) and wanted unique backup policies for each of them. My solution was to get a list of DCs, then iterate through each one with “Get-ResourcePool -Location DCName”, with the results added to a table array:

$vCenterDCs = Get-Datacenter
# Building array
$vCenterResourcePools = @()
# For Each DC
ForEach ($vCenterDC in $vCenterDCs)
{
# Getting DC variables
$DatacenterName = $vCenterDC.name
$DatacenterID = $vCenterDC.id
# Getting Resource Pools for the DC
$DCResourcePools = Get-ResourcePool -Location $vCenterDCName | Select *
ForEach ($DCResourcePool in $DCResourcePools)
{
# Setting variables
$ResourcePoolName = $DCResourcePool.Name
$ResourcePoolID = $DCResourcePool.Id
$ResourcePoolCluster = $DCResourcePool.Parent.Name
$ResourcePoolClusterID = $DCResourcePool.Parent.Id
# Adding each resource pool to the array
$vCenterResourcePool = New-Object PSObject
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "DC" -Value "$DatacenterName"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "DCID" -Value "$DatacenterID"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "Cluster" -Value "$ResourcePoolCluster"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ClusterID" -Value "$ResourcePoolClusterID"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ResourcePool" -Value "$ResourcePoolName"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ResourcePoolID" -Value "$ResourcePoolID"
$vCenterResourcePools += $vCenterResourcePool
}
# End of for each DC below
}
# End of for each DC below

Here’s the result:

Simple! The script is tested in PowerShell 5.1, includes saving vSphere credentials securely, and you can download it from here:

vSphereResourcePoolsByDCv1.zip

Or you can copy and paste it from the below:

################################################
# Configure the variables below for the vCenter
################################################
$vCenter = "192.168.1.10"
$ScriptDirectory = "C:\vSphereResourcePoolsByDCv1"
################################################
# Running the script, nothing to change below
################################################
#######################
# Importing vCenter credentials
#######################
# Setting credential file
$vCenterCredentialsFile = $ScriptDirectory + "\vCenterCredentials.xml"
# Testing if file exists
$vCenterCredentialsFileTest =  Test-Path $vCenterCredentialsFile
# IF doesn't exist, prompting and saving credentials
IF ($vCenterCredentialsFileTest -eq $False)
{
$vCenterCredentials = Get-Credential -Message "Enter vCenter login credentials"
$vCenterCredentials | EXPORT-CLIXML $vCenterCredentialsFile -Force
}
ELSE
{
# Importing credentials
$vCenterCredentials = IMPORT-CLIXML $vCenterCredentialsFile
}
#######################
# Installing then importing PowerCLI module
#######################
$PowerCLIModuleCheck = Get-Module -ListAvailable VMware.PowerCLI
IF ($PowerCLIModuleCheck -eq $null)
{
Install-Module -Name VMware.PowerCLI –Scope CurrentUser -Confirm:$false -AllowClobber
}
# Importing PowerCLI
Import-Module VMware.PowerCLI
#######################
# Connecting to vCenter
#######################
Connect-VIServer -Server $vCenter -Credential $vCenterCredentials
#######################
# Building a list of Resource Pools by Datacenter
#######################
$vCenterDCs = Get-Datacenter
# Building array
$vCenterResourcePools = @()
# For Each DC
ForEach ($vCenterDC in $vCenterDCs)
{
# Getting DC variables
$DatacenterName = $vCenterDC.name
$DatacenterID = $vCenterDC.id
# Getting Resource Pools for the DC
$DCResourcePools = Get-ResourcePool -Location $vCenterDCName | Select *
ForEach ($DCResourcePool in $DCResourcePools)
{
# Setting variables
$ResourcePoolName = $DCResourcePool.Name
$ResourcePoolID = $DCResourcePool.Id
$ResourcePoolCluster = $DCResourcePool.Parent.Name
$ResourcePoolClusterID = $DCResourcePool.Parent.Id
# Adding each resource pool to the array
$vCenterResourcePool = New-Object PSObject
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "DC" -Value "$DatacenterName"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "DCID" -Value "$DatacenterID"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "Cluster" -Value "$ResourcePoolCluster"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ClusterID" -Value "$ResourcePoolClusterID"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ResourcePool" -Value "$ResourcePoolName"
$vCenterResourcePool | Add-Member -MemberType NoteProperty -Name "ResourcePoolID" -Value "$ResourcePoolID"
$vCenterResourcePools += $vCenterResourcePool
}
# End of for each DC below
}
# End of for each DC below
#######################
# Showing result in gridview
#######################
$vCenterResourcePools | Out-gridview -Title "vCenter Resource Pools"
#######################
# Disconnecting from vCenter, un-comment if needed
#######################
# Disconnect-VIServer -Server $vCenter -Confirm:$false
#######################
# End of script
#######################

I hope you found this useful. Happy scripting,

@JoshuaStenhouse