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Checking for VM Snapshots in vCenter using Powershell

A small script to output snapshots per VM.

Connect-VIServer myserver.fqdn.com
Write "#####START#####"
$vms = $null
$vms = Get-VM
foreach ($vm in $vms) {
$snapshots =  Get-Snapshot -VM $vm
$i = 1
foreach ($snapshot in $snapshots) {
$i = $i + 1
if ($i -ge 2) {
$vm.name
$i
#$snapshot.Name
#$snapshotTable =  @($vm.Name) # | Sort-Object {$_.name}
#$snapshotTable
}
}
}
Write "#####DONE######"

You can also list snapshots based on a name containing any value using the following code:

Get-VM | Get-Snapshot | Where-Object {$_. -contains "searchString"}
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How to add datastores to single host in vCenter using Powershell

Connect-VIServer myserver.fqdn.com 
$VMHost = (Read-Host "Please enter the name of your the ESX Host you wish to configure")

$shellObject = new-object -comobject wscript.shell 
$intAnswer = $shellObject.popup("Do you want to add the datastores?", 0,"Add datastores - remember you must have added the hosts on the storage",4) 
If ($intAnswer -eq 6) {
Write "Creating Datastores on $VMHost…" 
New-Datastore -Nfs -VMHost $VMHost -Name datastorename -Path /vol/volname -NfsHost 10.10.10.10
New-Datastore -Nfs -VMHost $VMHost -Name datastorename -Path /vol/volname -NfsHost 10.10.10.10
} else {
Write "Skipping Datastores on $VMHost…" 
}
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List all VMs with a memory limit set in vCenter using Powershell

This script lists all VMs with a memory limit set in Resource Manger in a given VMWare cluster.

Connect-VIServer myserver.fqdn.com 
Get-Cluster $Cluster | Get-VM | Get-VMResourceConfiguration | where {$_.MemLimitMB -ne "-1"}

If you want to clear all memory limits and set them to unlimited use the following code

Connect-VIServer myserver.fqdn.com 
Get-Cluster MyCluster | Get-VM | Get-VMResourceConfiguration | where {$_.MemLimitMB -ne "-1"} | Set-VMResourceConfiguration -MemLimitMB $null

The same can also be done for the CPU management using CpuLimitMhz attribute.

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Bulk add a VMNetwork to a ESX Cluster

A quick powershell script to add a new VM Network to an existing ESX Cluster.

Connect-VIServer vsphere.example.com 
$Cluster = (Read-Host "Enter cluster name")
$vSwitch = (Read-Host "Enter vSwitch to add the port group to")
$PortGroup = (Read-Host "Enter vmNetwork name")
$vLANPortGroup = (Read-Host "Enter vmNetwork vLAN number")
Get-Cluster $Cluster | Get-VMHost -State "Connected" | Get-VirtualSwitch -Name $vSwitch | New-VirtualPortGroup -Name $PortGroup -VLanId $vLANPortGroup