http://www.virtu-al.net/script-list/

For Windows you can use PowerShell: powercli
For Linux, use: vSphere Perl SDK

PowerCli Misc commands

If you have an error message when starting PowerCLI, open a normal PowerShell as administrator:

Set-ExecutionPolicy RemoteSigned

Measure-Command { Get-VMHost } | fl TotalSeconds

https://msdn.microsoft.com/en-us/powershell/scripting/getting-started/cookbooks/using-format-commands-to-change-output-view

PS> Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -WarningAction SilentlyContinue  -confirm:$false
PS> Connect-VIServer -Server vc01.domain.local -User administrator@vsphere.local -Password ThisIsNotSecure

If you want to use usernames and passwords in text files it is better to use the standard PowerShell stuff for this, the PSCredential object. You can construct a PSCredential object with:

$credentials=Get-Credential

Again, if you don’t want the prompt you can generate it completely on the command line:

$credentials=Get-Credential -UserName administrator@vsphere.local -Message "Enter your vCenter password"

You will get prompted for a password. Now if you want to connect to vCenter you can use:

Connect-VIServer -Server vc01.domain.local -Credential $credentials

If you want to connect to more vCenter servers at the same time, or just don’t like generic connecting there is good news. You can assign the connection object to a variable. With that variable you can do other stuff as shown in the next example:

$vc1 = Connect-VIServer -Server vc01.domain.local -Credential $credentials
Get-VM -Server $vc1

How to implement CBT, what do you need ?

  VM version 7 at least,
  No snapshot on your VM
  Enable CBT,
  Finally the VM must go through a stun-unstun cycle (power on, resume after suspend, migrate, or snapshot create/delete/revert) before the reconfiguration takes effect.

Connect-Viserver <ip>
login…
passwd….

get-cbt.ps1

#Add-PSSnapin vmware.vimautomation.core
#Connect-Viserver #vcenterserver   
#####################################  
 ## http://kunaludapi.blogspot.com
 ## Version: 1  
 ## Tested this script on  
 ##  1) Powershell v3  
 ##  2) Powercli v5.5  
 ##  3) Vsphere 5.x  
 ####################################
 function Get-VMinventory {  

 }  
   foreach ($vm in (get-vm)) {  
     $props = @{'VMName'=$vm.Name;  
      'PowerState'= $vm.PowerState;  
      'CBTtracking' = (Get-VM -Name $vm).ExtensionData.Config.ChangeTrackingEnabled;
           }  
     $obj = New-Object -TypeName PSObject -Property $Props  
     Write-Output $obj | select-object -Property 'VMName','PowerState','CBTtracking'  
   }  
 Get-VMinventory 

tck_status.ps1

# Find VMs where CBT (Change Block Tracking) is Enabled
write-output "****** CTK Enabled"
Get-VM|Where-Object{$_.ExtensionData.config.ChangeTrackingEnabled -eq $true}
# Find VMs where CBT (Change Block Tracking) is Disabled
write-output "****** No CTK Enabled"
Get-VM|Where-Object{$_.ExtensionData.config.ChangeTrackingEnabled -eq $false}

Connect-Viserver <ip>
login…
passwd….

change-cbt.ps1

#Here is aRunning the script on VM to enable CBT
$vmtest = Get-vm TDPVEDM01 | get-view
$vmConfigSpec = New-Object VMware.Vim.VirtualMachineConfigSpec
$vmConfigSpec.changeTrackingEnabled = $true
$vmtest.reconfigVM($vmConfigSpec)

enable-cbt-all.ps1

Get-VM | Get-View | foreach {
$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
$spec.changeTrackingEnabled = $true
$taskMoRef = $_.ReconfigVM_Task($spec)
}

http://www.virtu-al.net/script-list/

Connect to the VCenter

PS> Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -WarningAction SilentlyContinue  -confirm:$false
PS> Connect-VIServer -Server vc01.domain.local -User administrator@vsphere.local -Password ThisIsNotSecure

Rescan all hosts

PS> Get-VMHost | Get-VMHostStorage -RescanAllHba

Rescan all hosts in a cluster:

PS> Get-Cluster -Name “ProVMware” | Get-VMHost | Get-VMHostStorage -RescanAllHba

Show the actual count of the active paths per datastore.

# Start Get all Connected Hosts
$myHosts = Get-VMHost | where {$_.ConnectionState  -eq "Connected" -and $_.PowerState -eq "PoweredOn"}

foreach($esx in $myHosts){
  $hss = Get-View $esx.Extensiondata.ConfigManager.StorageSystem

  $lunTab = @{}
  $hss.StorageDeviceInfo.ScsiLun | %{
    $lunTab.Add($_.Key,$_.CanonicalName)
  }
  $pathTab = @{}
  $hss.StorageDeviceInfo.MultipathInfo.Lun | %{
    $pathState = @($_.Path | Group-Object -Property PathState |
    where {$_.Name -eq "active"} | Select -ExpandProperty Group)

    if($pathTab.ContainsKey($_.Lun)){
      $pathTab[$_.Lun] += $pathState.Count
    }
    else{
      $pathTab.Add($lunTab[$_.Lun],$pathState.Count)
    }
  }

  foreach($mount in ($hss.FileSystemVolumeInfo.MountInfo | where {$_.Volume.Type -eq "VMFS"})){
    $mount.Volume.Extent |
    Select @{N="VMHost";E={$esx.Name}},
      @{N="Datastore";E={$mount.Volume.Name}},
      @{N="LUN";E={$_.DiskName}},
      @{N="Active Paths";E={$pathTab[$_.DiskName]}}
  } 
}

Output:

VMHost                 Datastore         LUN                                  Active Paths
------                 ---------         ---                                  ------------
esxa100.labo.lu        SVC_DATASTORE_06  naa.60050768025186646800000000000386            2
esxa100.labo.lu        Local-ESXA100     naa.600508b3301c5424e056c2fd39ab577b            1
esxa100.labo.lu        SVC_DATASTORE_04  naa.600507680251866468000000000003af            2

Show the actual count of the paths per HBA.

# Start Get all Connected Hosts
$myHosts = Get-VMHost | where {$_.ConnectionState  -eq "Connected" -and $_.PowerState -eq "PoweredOn"}

foreach($esx in $myHosts){
    foreach($hba in (Get-VMHostHba -VMHost $esx -Type "FibreChannel")){
        $target = ((Get-View $hba.VMhost).Config.StorageDevice.ScsiTopology.Adapter | where {$_.Adapter -eq $hba.Key}).Target
        $luns = Get-ScsiLun -Hba $hba  -LunType "disk" -ErrorAction SilentlyContinue
        $nrPaths = ($target | %{$_.Lun.Count} | Measure-Object -Sum).Sum
        $props = [ordered]@{
            VMHost = $esx.name
            HBA = $hba.Name
            Targets = $target.Count
            Devices = $luns.Count
            Paths = $nrPaths
        }
        New-Object PSObject -Property $props | ft -AutoSize
    }
} 

Output:

VMHost                 HBA    Targets Devices Paths
------                 ---    ------- ------- -----
esxa111.labo.lu vmhba0       6      89   178

Or more compact

# Start Get all Connected Hosts
$myHosts = Get-VMHost | where {$_.ConnectionState  -eq "Connected" -and $_.PowerState -eq "PoweredOn"}

foreach($esx in $myHosts){
    foreach($hba in (Get-VMHostHba -VMHost $esx -Type "FibreChannel")){
     $target = ((Get-View $hba.VMhost).Config.StorageDevice.ScsiTopology.Adapter | where {$_.Adapter -eq $hba.Key}).Target
     $luns = Get-ScsiLun -Hba $hba  -LunType "disk"
     $nrPaths = ($target | %{$_.Lun.Count} | Measure-Object -Sum).Sum
     Write-Host $esx $hba.Device "Targets:" $target.Count "Devices:" $luns.Count "Paths:" $nrPaths
     }
}

Output:

esxa100.labo.lu vmhba2 Targets: 2 Devices: 9 Paths: 18
esxa100.labo.lu vmhba3 Targets: 2 Devices: 9 Paths: 18
esxb101.labo.lu vmhba2 Targets: 2 Devices: 9 Paths: 18
esxb101.labo.lu vmhba3 Targets: 2 Devices: 9 Paths: 18

$Array = @()
$Clusters = Get-Cluster | Sort Name
ForEach ($Cluster in $Clusters){
$VmHosts = $Cluster | Get-VmHost | Where {$_.ConnectionState -eq “Connected”} | Sort Name
ForEach ($VmHost in $VmHosts){
$Array += Get-VMHostNetworkAdapter -VMHost $VmHost.Name -VMKernel | Where {$_.VMotionEnabled -eq “True”} | select VmHost,IP
}
}
$Array | Out-GridView

Script to remove 30 days old powered off vm guest from vCenter automatically and email user about it

$vms = Get-VM | where {$_.PowerState -eq "PoweredOff"}
$vmPoweredOff = $vms | %{$_.Name}
$events = Get-VIEvent -Start (Get-Date).AddDays(-30) -Entity $vms | where{$_.FullFormattedMessage -like "*is powered off"}
$lastMonthVM = $events | %{$_.Vm.Name}
$moreThan1Month = $vmPoweredOff | where {!($lastMonthVM -contains $_)} 

$moreThan1Month | Remove-VM -DeletePermanently -Confirm:$false
$vmNames = $moreThan1Month | Select -ExpandProperty Name

Send-MailMessage -From report@domain.com -To me@domain.com -SmtpServer mail@domain.com -Subject "Removed $($moreThan1Month.Count) VM" -Body ($vmNames | Out-String)