I've gathered these commands while implementing and managing ESXi 4.0 clusters, use with caution on any production system.
This is an extension of a previous post:
VMware vSphere PowerCLI commands
Join a cluster by moving an ESX host from one location to the cluster
Move-Inventory -Item (Get-VMHost -Name esxHost) -Destination (Get-Cluster -Name clusterName)
Get the VMware.Vim.ClusterComputeResource MO from the PowerCLI cluster object
$clusterview = get-view $cluster.Id
Reconfigure a host for VMware HA (high availability)
$vmhost = get-vmhost -name esxHost; $hostMO = Get-View -ID $vmhost.ID; $hostMO.ReconfigureHostForDAS()
Find migration events for the last day
$events = Get-VIEvent -Start (Get-Date).AddDays(-1) | where {$_.fullFormattedMessage -match "Migrating.*"}
Find events other than CPU Alarms or user login/logout for the last day
$events = Get-VIEvent -Start (Get-Date).AddDays(-1) | where {$_.fullFormattedMessage -notmatch "Alarm.*CPU.*|User.*logged.*"}
Find events for degraded MPIO path redundancy
$events = Get-VIEvent -Start (Get-Date).AddDays(-1) | where {$_.fullFormattedMessage -match "Path redundancy to storage.*degraded"}
Report the date, host and description for MPIO path redundancy errors
foreach ($event in $events) {write-output ($event.createdTime.ToString() + "," + $event.host.get_name() + "," + $event.fullFormattedMessage)}
List a table of VI events with only the date and message
$events | format-table -wrap -autosize -property createdTime,fullFormattedMessage
List the physical networks adapters and the current link speed (ESX 4.0)
$hostSystem = get-view -ViewType HostSystem; $hostConfigManager = $hostSystem.get_ConfigManager(); $hostNetworkSystem = $hostConfigManager.get_NetworkSystem(); $netSystem = Get-View $hostNetworkSystem; $netSystem.NetworkConfig.pnic; foreach ($pnic in $netSystem.NetworkConfig.pnic) {Write-Output ($pnic.Device + "," + $pnic.spec.linkspeed.SpeedMB)}
List the vSwitches and the uplinks currently attached
$hostSystem = get-view -ViewType HostSystem; $hostConfigManager = $hostSystem.get_ConfigManager(); $hostNetworkSystem = $hostConfigManager.get_NetworkSystem(); $netSystem = Get-View $hostNetworkSystem; foreach ($vswitch in $netSystem.NetworkConfig.vSwitch) {Write-Output ($vSwitch.Name + "," + $vswitch.spec.policy.NicTeaming.NicOrder.ActiveNic)}
Remove snapshots from a group of machines
$VMs = Get-VM -Location (get-folder -name "vmFolder"); foreach ($vm in $vms) {remove-snapshot -snapshot (Get-Snapshot -vm $vm) -confirm:$false}
Take snapshots of a group of machines
$VMs = Get-VM -Location (get-folder -name "vmFolder"); foreach ($vm in $VMs) {New-Snapshot -Name "snapshot 01" -description "Snapshot description" -vm $vm -Quiesce:$false}
Find VM name, description and primary disk datastore
$VMs = get-vm; foreach ($vm in $VMs) {write-output ($vm.Name + ",""" + $vm.Description + """," + $vm.harddisks[0].FileName.Replace(" ", ",")) | out-file -append -filepath c:\temp\VM_Datastores.txt}
Bring a host out of maintenance most
Set-VMHost -VMHost esxHost -State Connected
Generate diagnostic support bundles for all hosts
get-log -vmhost (get-vmhost) -bundle -destinationpath c:\temp\bundles
Find the network adapter type for each VM
$vms = get-vm ; foreach ($vm in $vms) {write-host $vm.Name "-" $vm.networkadapters[0].type}
Find physical NICs and whether they're set to autonegotiate or hardcoded
foreach ($pnic in $hostNetwork.pnic) {if($pnic.linkSpeed -eq $null) {$ls = "Auto"} else {$ls= $pnic.linkSpeed.speedMB.toString() + ":" + $pnic.linkSpeed.duplex} ;write-output ($pnic.Device + "," + $ls)}
Find host sytem build information
$hostSystems = get-view -ViewType HostSystem; foreach ($hostSystem in $hostSystems) {Write-Output ($hostSystem.Name + "," + $hostSystem.config.product.Fullname)}
Find VMs and whether the VMtools is configured to synchronising time
$vmSet = Get-VM ; foreach ($vm in $vmSet) { $view = get-view $vm.ID ;$config = $view.config; $tools = $config.tools; Write-Output ($vm.Name + "," + $tools.SyncTimeWithHost) }
Revert to a snapshot
set-vm -vm vmName -snapshot (get-snapshot -vm vmName) -confirm:$false
Remove a virtual machine from inventory and delete from disk
remove-vm -DeleteFromDisk:$true -RunAsync:$true -vm vmName
Shutdown one or more Virtual Machine guests
shutdown-vmguest -vm $vms -confirm:$false
Start one or more Virtual Machine guests
start-vm -vm $vms -confirm:$false
Forcefully power off one or more Virtual Machines
stop-vm $vms -confirm:$false
Get a virtual switch from the specified ESX host
get-virtualswitch -name vSwitch1 -vmhost esxHost
Create a new port group on the specified vSwitch
New-VirtualPortGroup -Name "pgName" -VirtualSwitch $vs
Find ESX memory balloon averages for the last five days
get-stat -entity $hosts -start (Get-Date).AddDays(-5) -finish (Get-Date) -stat mem.vmmemctl.average
Export a list of VMs
$vms | select-object -prop Name | out-file -filepath c:\temp\vms.txt
Export a list of VM guest hostnames
$vms = get-vm; foreach ($vm in $vms) { write-output $vm.guest.get_HostName()}
Wayne's World of IT (WWoIT), Copyright 2009 Wayne Martin.