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Archive for February, 2012

A bug in the vSphere Client?!

February 28th, 2012 No comments

During the ICM course that I was co-teaching last week i found a bug (I think) in the vSphere Client.

When I have installed a windows 2003 virtual machine and also deployed the VM tools i can configure the behavior of the power controls when editing the properties.

The interesting part here is that when i open the virtual machine console, although as you can see that i have set it to “Shut Down guest”, when i press that button in the virtual machine console i get a question about if i am sure that i want to turn it off, this as you can see on my next screenshot. And some of you will say, oh your tools are not running, that is why you get this, but…

If i use the power controls in the vSphere Client i get the following confirmation, that is the correct one ( I have not restarted or done anything other than change to the Client instead of the virtual machine console)

The strange thing is that it is not consistent this error and some times in the virtual machine console the stop button works as expected.

Anyone else seen this?

Categories: Virtualization, VMware Tags:

Updated VMware vSphere FT (Fault Tolerance) function for PowerCLI

February 25th, 2012 2 comments

After this week when i have been co-teaching a VMware vSphere ICM course i was going to show the students FT and I was seeking in the powerCLI reference for some cmdlets but could not find any.

I created my own function for enabling this, i got inspiration from Cody Bunch post but extended it with a function and also with my function you can disable/enable/remove and test restart/failover the secondary vm. I also check if the FT is enabled or not before making any changes.

Here is the PowerCLI function, i am using some Get-View to be able to use the FT functions.

Updated: Today (Monday 27/2) i added functionality with a possibility to also send VMHost as argument, but then i realized some errors occuring, my assumtions that the primary VM always was the first object when doing a Get-VM was false, i have corrected the function that it actually checks for the correct VM, Primary or Secondary. If you do not send VMHost parameter the FT process will choose a Host for you, this cannot be the same as the Primary VM resides on.

function Set-VMFaultTolerance{
<#
.SYNOPSIS
Enable FT for the VM sent as parameter

.DESCRIPTION
Use this function to enable or disable Fault Tolerance

.PARAMETER  xyz 

.NOTES
Author: Niklas Akerlund / RTS
Date: 2012-02-27
#>
    param (
   [Parameter(Position=0,Mandatory=$true,HelpMessage="A virtual machine",
    ValueFromPipeline=$True)]
    $VM,
	$VMHost = $null,
	[switch]$enableFT,
	[switch]$disableSecondaryFT,
	[switch]$removeFT,
	[switch]$failOverFT,
	[switch]$restartSecondaryFT
    )
	if ($VM.ExtensionData.Config.FtInfo -ne $null){
		$VM = Get-VM $VM | where {$_.Extensiondata.Config.FtInfo.Role -eq 1}
	} else {
		$VM = Get-VM $VM
	}
	if ($VMHost -ne $null){
		$VMHost = Get-VMHost $VMHost | Get-View
		if ($VMHost -ne $null) {
			$VMHostobj = New-Object VMware.Vim.ManagedObjectReference
			$VMHostobj.type = "HostSystem"
			$VMHostobj.value = $VMHost.MoRef.Value
			$VMHost = $VMHostobj
		}
	}

	if ($enableFT) {
		if ($VM.ExtensionData.Config.FtInfo -eq $null){
			$VMview = $VM | Get-View
			$VMview.CreateSecondaryVM($VMHost)
		} else{
			$VMsec = Get-VM $VM.Name | where {$_.Extensiondata.Config.FtInfo.Role -eq 2}| Get-View
			$VMobj = New-Object VMware.Vim.ManagedObjectReference
			$VMobj.type = "VirtualMachine"
			$VMobj.value = $VMsec.MoRef.Value
			$VMview = $VM | Get-View
			$VMview.EnableSecondaryVM($VMobj, $null)
		}
	}elseif ($disableSecondaryFT) {
		if ($VM.ExtensionData.Config.FtInfo -ne $null){
			$VMsec = Get-VM $VM.Name | where {$_.Extensiondata.Config.FtInfo.Role -eq 2 -and $_.PowerState -eq "PoweredOn"}| Get-View
			if ($VMsec -ne $null){			
				$VMobj = New-Object VMware.Vim.ManagedObjectReference
				$VMobj.type = "VirtualMachine"
				$VMobj.value = $VMsec.MoRef.Value
				$VMview = $VM | Get-View
				$VMview.DisableSecondaryVM($VMobj)
			}else {
				Write-Host "The Secondary is already disabled"
			}
		}else {
			Write-Host "This VM is not FT enabled"
		}
	}elseif ($failOverFT) {
		if ($VM.ExtensionData.Config.FtInfo -ne $null){
			$VMsec = Get-VM $VM.Name | where {$_.Extensiondata.Config.FtInfo.Role -eq 2 -and $_.PowerState -eq "PoweredOn"}| Get-View
			if ($VMsec -ne $null){
				$VMobj = New-Object VMware.Vim.ManagedObjectReference
				$VMobj.type = "VirtualMachine"
				$VMobj.value = $VMsec.MoRef.Value
				$VMview = $VM | Get-View
				$VMview.MakePrimaryVM($VMobj)
			}else {
				Write-Host "The Secondary is disabled"
			}
		}else {
			Write-Host "This VM is not FT enabled"
		}
	}elseif ($restartSecondaryFT) {
		if ($VM.ExtensionData.Config.FtInfo -ne $null){
			$VMsec = Get-VM $VM.Name | where {$_.Extensiondata.Config.FtInfo.Role -eq 2 -and $_.PowerState -eq "PoweredOn"}| Get-View
			if ($VMsec -ne $null){
				$VMobj = New-Object VMware.Vim.ManagedObjectReference
				$VMobj.type = "VirtualMachine"
				$VMobj.value = $VMsec.MoRef.Value
				$VMview = $VM | Get-View
				$VMview.TerminateFaultTolerantVM($VMobj)
			}else {
				Write-Host "The Secondary is disabled"
			}
		}else {
			Write-Host "This VM is not FT enabled"
		}
	}elseif ($removeFT){
		if ($VM.ExtensionData.Config.FtInfo -ne $null){
			$VMview = Get-VM $VM | where {$_.Extensiondata.Config.FtInfo.Role -eq 1}| Get-View
			$VMview.TurnOffFaultToleranceForVM()
		} else {
			Write-Host "This VM is not FT enabled"
		}
	} 

}

 

Categories: PowerCLI, Powershell, Virtualization, VMware Tags:

Add my own custom properties and populate them with powershell in VMM2012

February 18th, 2012 8 comments

I have made a powershell script function to update information about what VLAN and IP the VM´s have. This for the IT Admin to easily see in the VMM 2012 Console. Of course the function can be customized to populate any other information available for the VM´s, maybe you want to display create date or something else that is not in the standard properties and you do not want to use the pre-made custom# .

I am using the Get-IPAddress from Ben Wilkinson, This requires that the VMM server can resolve the IP of the VM´s from a DNS.

If I do not have an DNS or the VLAN info is not stored, i can via the parameters update the properties by -IP or -VLANid.

As you can see on this screen dump, by default i only have custom#, to add my own i have to click on “Manage Custom Properties”

Here i press “Create” and add a name and optionally a description

Then when i have created the custom properties i want i add them,

Then it looks like this,

Now the powershell function comes into play when i am going to populate these fields with information.

function Set-CustomValue{
# Function to add custom data on VMs
#
# Niklas Akerlund /RTS 2012-02-18
    param (
   [Parameter(Position=0,Mandatory=$true,HelpMessage="A virtual machine pleaze",
    ValueFromPipeline=$True)]
    $VM,
	$VLANid = "",
	$IP = ""
    )
    . .\Get-IPAddress.ps1
    
    $VM = Get-SCVirtualMachine $VM
	
  	$CustomIP = Get-SCCustomProperty -Name "IP"
    $CustomVLAN = Get-SCCustomProperty -Name "VLAN"
    
	if ($IP -eq ""){
		$IP = Get-IPAddress -HostName $VM.Name
    }
	
	if ($VLANid -eq ""){
	    $VMnics = $VM | Get-SCVirtualNetworkAdapter
	    if($VMnics.Count -ne $null){
	        foreach ($VMnic in $VMnics){
	            $VLANid = $VLANid + $VMnic.VlanID + " "
	        }
	        Set-SCCustomPropertyValue -InputObject $VM -CustomProperty $CustomVLAN -Value $VLANid
	    }else{
	        Set-SCCustomPropertyValue -InputObject $VM -CustomProperty $CustomVLAN -Value $VMnics.VlanID
	    }
    }else {
		Set-SCCustomPropertyValue -InputObject $VM -CustomProperty $CustomVLAN -Value $VLANid
	}
    if($IP -ne ""){
        Set-SCCustomPropertyValue -InputObject $VM -CustomProperty $CustomIP -Value $IP       
    }
}

a screendump of my powershell console, as you can see I am using the (Get-SCVMHostCluster).Nodes to get all virtual machines on these, also i am using a foreach (%) to run the population on each VM.

And this is how it looks in the VMM console,

 

Migrate VM´s in SCVMM 2012 from one cluster to a new

February 14th, 2012 No comments

I have made a simple powershell function that can move VM´s from one cluster to another and also set the network configuration, this because the old cluster had one way of setup regarding the virtual machine network and the new another more flexible with promiscuous mode set on the HP nic team so i do not need to create one virtual switch for every vlan. The function also checks if the actual VM has snapshots before moving it. (the SCVMM calls it checkpoints, which is stupid to call it one thing in hyper-v and another in SCVMM!)

the powershell function looks like this:

function Migrate-VM {

param (
   [Parameter(Position=0,Mandatory=$true,HelpMessage="A virtual machine pleaze",
    ValueFromPipeline=$True)]
    $VM,
    [Parameter(Mandatory=$true)]$VMHost,
    $VMnic,
    $VMnetwork = "VMs",
    $Datastore = "C:\ClusterStorage\Volume1",
    [switch]$StartVM
    )
    
    if( Get-SCVirtualMachine $VM | Get-SCVMCheckpoint) {
		$VM = Get-SCVirtualMachine $VM
		Write-Host " Please remove snapshots and do a shutdown of the VM:" + $VM.Name
    }else{
	    $JobGroupID = [guid]::NewGuid()
	    
	    $VMHost = Get-SCVMHost $VMHost
	    $VMnic = Get-SCVirtualMachine $VM | Get-SCVirtualNetworkAdapter
	    
	    $LogicalNetwork = (Get-SCLogicalNetworkDefinition -VLanID $VMnic.VlanID).LogicalNetwork

	    Set-SCVirtualNetworkAdapter -VirtualNetworkAdapter $VMnic -RunAsynchronously -VirtualNetwork $VMnetwork -LogicalNetwork $LogicalNetwork -VLanEnabled $true -VLanID $VMnic.VlanID -JobGroup $JobGroupID -EnableVMNetworkOptimization $false -EnableMACAddressSpoofing $false
	    if($StartVM){
	        Move-SCVirtualMachine -VM $VM -VMHost $VMHost -HighlyAvailable $true -Path $Datastore -StartVMOnTarget -RunAsynchronously -UseLAN -JobGroup $JobGroupID
	    }else
	    {
	        Move-SCVirtualMachine -VM $VM -VMHost $VMHost -HighlyAvailable $true -Path $Datastore -RunAsynchronously -UseLAN -JobGroup $JobGroupID
	    }
    }   
    
}

And this screendump shows some different ways of running it,

VM inventory function with Powershell on SCVMM 2012

February 13th, 2012 14 comments

Had a plan to do a blog post last week but was so busy studying for the VCP 5 test. I wrote the test on friday and i passed :-)

I have created a little powershell function, this to get the inventory information about the virtual machines running in hosts or clusters that are connected to a System Center Virtual Machine Manager. This function collects number of configured vCPU´s, Memory, information about the connected virtual harddisks. This kind of information could be handy as in the case with one customer that has not yet implemented a host based backup solution and still use agents in their VM´s, so if they need to recover machines it is good to know what size and configuration it had if it is lost by some reason. This report can also be handy for some info on how much your datastores are filled. As you can se i both report the maximum size and the current (as dynamic disks are not allocating the whole size at creation time)

The function both export a csv and a HTML report

After importing it to excel it can look something like this:

And the html output is very simple but can be put on a internal web for IT production

I have used the Get-SCVirtualDisk to get the Bus Type and LUN id as this information is not available in Get-SCVirtualHarddisk, this information can be good if i lost the virtual machine configuration and want to connect the virtual harddisks to the right controller.

the function looks like this: (if you copy this you have to move the first # up to the <, the blog syntax highlighter does something and move it down :-( )

function Get-VMdata{
<#
.SYNOPSIS
Get the configuration data of the VMs in Hyper-V via SCVMM 2012
 
.DESCRIPTION
Use this function to get all VMs configuration in case of disaster or just statistics
 
.PARAMETER  xyz 
 
.NOTES
Author: Niklas Akerlund / RTS
Date: 2012-02-13
#>
param (
	$VMHostGroup = "All Hosts",
	[Parameter(ValueFromPipeline=$True)][Alias('ClusterName')]
	$VMHostCluster = $null,
	$VMHost = $null,
	[string]$CSVFile = "VMdata.csv",
    [string]$HTMLReport = "VMdata.html"
    )
	
	$report = @()
	if ($VMHostCluster -eq $null){
		$VMHosts = (Get-SCVMHostGroup -Name $VMhostGroup).AllChildHosts
	}else{
			$VMHosts = (Get-SCVMHostCluster -Name $VMHostCluster).Nodes
	}
	$VMs = $VMHosts | Get-SCVirtualMachine
	
	foreach ($VM in $VMs) {
		$VHDs = $VM | Get-SCVirtualDiskDrive
		$i = "1"
		foreach ($VHDconf in $VHDs){ 
			if($i -eq "1"){
				$data = New-Object PSObject -property @{
					VMName=$VM.Name
			        vCPUs=$VM.CPUCount
			        MemoryGB= $VM.Memory/1024
					VHDName = $VHDconf.VirtualHardDisk.Name
					VHDSize = $VHDconf.VirtualHardDisk.MaximumSize/1GB
					VHDCurrentSize = [Math]::Round($VHDconf.VirtualHardDisk.Size/1GB)
					VHDType = $VHDconf.VirtualHardDisk.VHDType
					VHDBusType = $VHDconf.BusType
					VHDBus = $VHDconf.Bus
					VHDLUN = $VHDconf.Lun
					VHDDatastore = $VHDconf.VirtualHardDisk.HostVolume
				}
				$i= "2"
			}else{
				$data = New-Object PSObject -property @{
					VMName=""
			        vCPUs=""
			        MemoryGB= ""
					VHDName = $VHDconf.VirtualHardDisk.Name
					VHDSize = $VHDconf.VirtualHardDisk.MaximumSize/1GB
					VHDCurrentSize = [Math]::Round($VHDconf.VirtualHardDisk.Size/1GB)
					VHDType = $VHDconf.VirtualHardDisk.VHDType
					VHDBusType = $VHDconf.BusType
					VHDBus = $VHDconf.Bus
					VHDLUN = $VHDconf.Lun
					VHDDatastore = $VHDconf.VirtualHardDisk.HostVolume
				}
			}
			$report +=$data	
		}
	}
	$report | Select-Object VMName,vCPUs,MemoryGB,VHDName,VHDSize,VHDCurrentSize,VHDType,VHDBusType,VHDBus,VHDLUN,VHDDatastore | Export-Csv -Path $CSVFile -NoTypeInformation -UseCulture
	$report | Select-Object VMName,vCPUs,MemoryGB,VHDName,VHDSize,VHDCurrentSize,VHDType,VHDBusType,VHDBus,VHDLUN,VHDDatastore | ConvertTo-HTML | Out-File $HTMLReport
}

and i can run it in some different ways, as you see in this screenshot, if i do not give any parameters it will use VMHostGroup “All Hosts” as default

SCVMM 2012 powershell function for configure network on hosts

February 2nd, 2012 No comments

After bare metal deployment of the hosts we need to configure the network on the hosts, this can be done from the SCVMM 2012 powershell console.

I have made a function of the creation of first a virtual switch and also adding the logical networks, if i do not add the networks to the particular host nic where the virtual switch is i cannot deploy virtual machines and get them connected to the network.

You can add the logical networks and their associated vlan/subnet before any host is imported into SCVMM and of course i have created a function for that also, this can take a csv file or just the parameters

Here is a screen dump if i run it without a csv file

and the result is the following

And here is the powershell code for the add logical networks function

function Add-SCLogicalNetworks{
<#
.SYNOPSIS
Add logical networks to your SCVMM fabric
 
.DESCRIPTION
With this function you add logical networks
 
.PARAMETER  CSVNetworks
Path to a CSV file with the logical network info 
 
.NOTES
Author: Niklas Akerlund / RTS
Date: 2012-02-02
#>
param (
    $CSVNetworks = "",
	$VMHostGroup = "All Hosts",
	[string]$Name = "",
	[string]$IPnet = "",
    	[string]$Octet = "24",
	[int]$VLAN = 0
    )
$VMHostGroup = Get-SCVMHostgroup $VMHostGroup

if ($CSVNetworks -ne "") {	
	$VLANs = Import-Csv $CSVNetworks -Delimiter ";"

	foreach ($VLAN in $VLANs){
	    $LogicalNetwork = New-SCLogicalNetwork -Name $VLAN.Name
	    $Network = $VLAN.IPnet + "/" + $VLAN.Octet
	    $SubnetVlan = New-SCSubnetVLan -Subnet $Network -VLanID $VLAN.VLAN
	    New-SCLogicalNetworkDefinition -Name $VLAN.Name -LogicalNetwork $logicalNetwork -VMHostGroup $VMHostGroup -SubnetVLan $SubnetVlan 
	}
}else{
	$LogicalNetwork = New-SCLogicalNetwork -Name $Name
	$Network = $IPnet + "/" + $Octet
	$SubnetVlan = New-SCSubnetVLan -Subnet $Network -VLanID $VLAN
	New-SCLogicalNetworkDefinition -Name $Name -LogicalNetwork $logicalNetwork -VMHostGroup $VMHostGroup -SubnetVLan $SubnetVlan 
}
}

when i have the logical networks i want to configure the host

And the result is the following

And this is also displayed on the physical nic

and here is the powershell code for configuring the host:

function Configure-SCVMhostNetwork{
<#
.SYNOPSIS
Configure the network on the Hyper-V Host
 
.DESCRIPTION
With this function you set virtual switch and configure logical networks
 
.PARAMETER  VMHost
The new host that is going to be configurered 

.PARAMETER refVMHost
if there are different hyper-v clusters and logical networks, use a ref host for the configuration to set it up
 
.PARAMETER VMHostnic
The nic that is going to be configured with a virtual switch (in this case a NIC team named "VM"
 
.EXAMPLE
PS C:\> Get-SCVMHost Hyp04 | Configure-SCVMhostNetwork

.EXAMPLE
PS C:\> Configure-SCVMhostNetwork -VMHost Hyp04 -refVMHost Hyp06
 
.NOTES
Author: Niklas Akerlund / RTS
Date: 2012-02-02
#>
param (
   [Parameter(Position=0,Mandatory=$true,HelpMessage="This need to be a Hyper-V Host name or object",
    ValueFromPipeline=$True)]
    $VMHost,
	[string]$refVMHost = "",
	[string]$VirtualNetworkName = "VMs",
    [string]$VMHostnic = "VM"
    )
 
$VMHost = Get-VMHost $VMHost
if ($VMHost -ne $null) {
	if ($refVMHost -eq ""){
		$LogicalNetworks = Get-SCLogicalNetwork
	}else
    {
		$LogicalNetworks = Get-SCLogicalNetwork -VMHost $refVMHost
	}
	
	$vmHostNetworkAdapter = Get-SCVMHostNetworkAdapter -VMHost $VMHost -Name $VMHostnic
	$virtualNetwork = New-SCVirtualNetwork -VMHost $VMHost -Name $VirtualNetworkName -Description "" -BoundToVMHost $false -VMHostNetworkAdapters $vmHostNetworkAdapter	   
	$vmHostNetworkAdapter = Get-SCVMHostNetworkAdapter -Name $VMHostnic -VMHost $VMHost
	foreach ($LogicalNet in $LogicalNetworks){
		Set-SCVMHostNetworkAdapter -VMHostNetworkAdapter $vmHostNetworkAdapter -AddOrSetLogicalNetwork $logicalNet
	}
}
}

 

Categories: Hyper-V, Powershell, SCVMM, Virtualization Tags: