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Cozumpark Bilisim Portali
Posted in Virtual Machine Manager, Windows Powershell, Windows Server | 1 Comment | 3,321 views | 07/05/2014 22:55

This is the first part of our Azure Monitoring script. It’s just a concept to show you how to monitor your Azure VM via PowerShell. Azure Powershell is not able to give performance data of virtual machines, so we will use remote PowerShell to connect Azure VMs.

My VMs are Windows Server 2012 R2, so Remote PowerShell is enabled by default on that servers. But if you are using earlier version of Windows, you should enable Remote PowerShell.

I simply used “Get-Credential” to get authenticated on Azure VMs but you can also store your password in a file as a plain text and use it to authenticate.

My Azure Subscriptions settings are in “Azure.Credentials.publishsettings” file. You can download it from Azure Website.

Following script is sample codes of VirtualMetric: Azure Module. You can check it from: http://www.virtualmetric.com

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################################
## VirtualMetric: Azure Module
################################
 
# Debug Path
$DebugPath = "C:\PowerShell\debug.txt"
 
# Debug Preference
$ErrorActionPreference = "SilentlyContinue";
 
# Import Azure PowerShell Module
Import-Module Azure -EA Stop
 
# Import Azure Settings
Import-AzurePublishSettingsFile "C:\PowerShell\Azure.Credentials.publishsettings" -EA Stop
 
# Azure VM Credentials
$Credentials = Get-Credential
 
while ($True)
{
	# Execution Time Calculation
	$PoSHStartTime = Get-Date
 
	# Start Work
	Write-Host "Starting job.."
 
	# Get Azure Virtual Machines
	$VMs = Get-AzureVM | Where ServiceName -eq "AzureWebFarm"
 
	foreach ($VM in $VMs)
	{
		# Clear Variables
		$VMDetails = $Null;
		$AzureEndpoints = $Null;
		$VMName = $Null;
		$VMServiceName = $Null;
		$VMIPAddress = $Null;
		$VMAvailabilitySetName = $Null;
		$VMInstanceSize = $Null;
		$VMPowerState = $Null;
		$VMDNSAddress = $Null;
		$VMDNSName = $Null;
		$VMWinRMCertThumbprint = $Null;
		$CheckAzureVMCert = $Null;
		$OSInformation = $Null;
		$CPUInformation = $Null;
 
		# Get Azure VM Details
		$VMDetails = Get-AzureVM -ServiceName $VM.ServiceName -Name $VM.Name
 
		# Get Azure VM Information
		$VMName = $VMDetails.Name
		$VMServiceName = $VMDetails.ServiceName
		$VMIPAddress = $VMDetails.IPAddress
		$VMAvailabilitySetName = $VMDetails.AvailabilitySetName
		$VMInstanceSize = $VMDetails.InstanceSize
		$VMPowerState = $VMDetails.PowerState
		$VMDNSAddress = $VMDetails.DNSName
		$VMWinRMCertThumbprint = $VMDetails.VM.DefaultWinRMCertificateThumbprint
 
		# Get Azure VM DNS Name
		$VMDNSName = $VMDNSAddress -match "(?<=\//)(.*?)(?=\/)"
		$VMDNSName = $Matches[0]
 
		# Parameter Validation
		if (!$VMAvailabilitySetName) { $VMAvailabilitySetName = "Non-HA" }
 
		Write-Host " "
		Write-Host " "
		Write-Host "VM Details:"
		Write-Host " "
		Write-Host "VM Name: $VMName"
		Write-Host "VM ServiceName: $VMServiceName"
		Write-Host "VM IP Address: $VMIPAddress"
		Write-Host "VM Availability SetName: $VMAvailabilitySetName"
		Write-Host "VM Instance Size: $VMInstanceSize"
		Write-Host "VM Power State: $VMPowerState"
		Write-Host "VM DNS Address: $VMDNSAddress"
		Write-Host "VM DNS Name: $VMDNSName"
		Write-Host "VM WinRM Certificate Thumbprint: $VMWinRMCertThumbprint"
 
		# Get Azure VM Endpoints
		$AzureEndpoints = $VMDetails | Get-AzureEndpoint
 
		Write-Host " "
		Write-Host " "
		Write-Host "VM Endpoint Details:"
 
		foreach ($AzureEndpoint in $AzureEndpoints)
		{
			# Clear Values
			$AzureEndpointLBSetName = $Null;
			$AzureEndpointProbePort = $Null;
			$AzureEndpointProbeProtocol = $Null;
 
			# Get Azure Endpoint Details
			$AzureEndpointName = $AzureEndpoint.Name
			$AzureEndpointLocalPort = $AzureEndpoint.LocalPort
			$AzureEndpointLBSetName = $AzureEndpoint.LBSetName
			$AzureEndpointVip = $AzureEndpoint.Vip
			$AzureEndpointPort = $AzureEndpoint.Port
			$AzureEndpointProtocol = $AzureEndpoint.Protocol
			$AzureEndpointProbePort = $AzureEndpoint.ProbePort
			$AzureEndpointProbeProtocol = $AzureEndpoint.ProbeProtocol
 
			# Parameter Validation
			if (!$AzureEndpointLBSetName) { $AzureEndpointLBSetName = "Non-HA" }
			if (!$AzureEndpointProbePort) { $AzureEndpointProbePort = "Non-HA" }
			if (!$AzureEndpointProbeProtocol) { $AzureEndpointProbeProtocol = "Non-HA" }
 
			Write-Host " "
			Write-Host "Azure Endpoint Name: $AzureEndpointName"
			Write-Host "Azure Endpoint Local Port: $AzureEndpointLocalPort"
			Write-Host "Azure Endpoint LB SetName: $AzureEndpointLBSetName"
			Write-Host "Azure Endpoint Vip: $AzureEndpointVip"
			Write-Host "Azure Endpoint Port: $AzureEndpointPort"
			Write-Host "Azure Endpoint Protocol: $AzureEndpointProtocol"
			Write-Host "Azure Endpoint Probe Port: $AzureEndpointProbePort"
			Write-Host "Azure Endpoint Probe Protocol: $AzureEndpointProbeProtocol"
		}
 
		# Check Azure VM Certificate
		$CheckAzureVMCert = Get-ChildItem -Path Cert:\LocalMachine\Root | Where Thumbprint -eq $VMWinRMCertThumbprint
 
		if (!$CheckAzureVMCert)
		{		
			# Get Azure VM Certificate
			$AzureX509Cert = Get-AzureCertificate -ServiceName $VMServiceName -Thumbprint $VMWinRMCertThumbprint -ThumbprintAlgorithm sha1
 
			# Save Certificate to Temp File
			$CertTempFile = [IO.Path]::GetTempFileName()
			$AzureX509Cert.Data | Out-File $CertTempFile
 
			# Get Local Certificate File
			$LocalCertFile = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2 $CertTempFile
 
			# Import Local Certificate
			$CertStore = New-Object System.Security.Cryptography.X509Certificates.X509Store "Root", "LocalMachine"
			$CertStore.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadWrite)
			$CertStore.Add($LocalCertFile)
			$CertStore.Close()
 
			# Remove Temp File
			Remove-Item $CertTempFile
		}
 
		if ($VMPowerState -eq "Started")
		{		
			# Get Azure VM WinRM Uri
			$AzureVMWinRMUri = Get-AzureWinRMUri -ServiceName $VMServiceName -Name $VMName
 
			# Get Azure VM Credentials
			if (!$Credentials) { $Credentials = Get-Credential }
 
			# Get Azure VM Data
			$OSInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_OperatingSystem"} -Credential $Credentials
			$CPUInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_Processor"} -Credential $Credentials
			$DiskInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_LogicalDisk"} -Credential $Credentials
 
			if ($OSInformation -and $CPUInformation -and $DiskInformation)
			{
				# Get Azure VM Resource Usage
				$AzureVMCPUName = $CPUInformation[0].Name
				$AzureVMCPUSocket = @($CPUInformation).Count
				$AzureVMCPUCount = $CPUInformation[0].NumberOfCores * $AzureVMCPUSocket
				$AzureVMCPULoad = $CPUInformation | Measure-Object -Property LoadPercentage -Sum
				$AzureVMCPUUsage = [math]::round(($AzureVMCPULoad.Sum / $AzureVMCPULoad.Count), 0)
				$AzureVMTotalMemory = ([math]::round(($OSInformation.TotalVisibleMemorySize / 1MB), 1))
				$AzureVMFreeMemory = ([math]::round(($OSInformation.FreePhysicalMemory / 1MB), 1))
				$AzureVMTotalDisk = ([math]::round(($DiskInformation.Size / 1GB), 1))
				$AzureVMFreeDisk = ([math]::round(($DiskInformation.FreeSpace / 1GB), 1))
				$AzureVMTotalDiskUsage = [int]$AzureVMTotalDisk - [int]$AzureVMFreeDisk
				$AzureVMDiskReadIO = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {[math]::round(((Get-Counter -Counter "\LogicalDisk(C:)\Disk Reads/Sec").CounterSamples[0].CookedValue), 0)} -Credential $Credentials
				$AzureVMDiskWriteIO = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {[math]::round(((Get-Counter -Counter "\LogicalDisk(C:)\Disk Writes/Sec").CounterSamples[0].CookedValue), 0)} -Credential $Credentials
 
				Write-Host " "
				Write-Host "CPU Name: $AzureVMCPUName"
				Write-Host "CPU Count: $AzureVMCPUCount"
				Write-Host "CPU Usage: $AzureVMCPUUsage"
				Write-Host "Total Memory: $AzureVMTotalMemory GB"
				Write-Host "Free Memory: $AzureVMFreeMemory GB"
				Write-Host "Total Disk: $AzureVMTotalDisk GB"
				Write-Host "Free Disk: $AzureVMFreeDisk GB"
				Write-Host "Disk Read IO: $AzureVMDiskReadIO"
				Write-Host "Disk Write IO: $AzureVMDiskWriteIO"
			}
		}
	}
 
	# Prepare for Next Job
	Write-Host " "
	Start-Sleep 60
}

As you see, after monitoring VMs, I simply output it with Write-Host. But next time, we will use XML to format it.


Posted in Windows Powershell | No Comment | 24,560 views | 02/05/2014 23:01

You can add Windows Azure PowerShell module into PSModulePath with following:

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#Save the current value in the $p variable.
$p = [Environment]::GetEnvironmentVariable("PSModulePath")
 
#Add the new path to the $p variable. Begin with a semi-colon separator.
$p += ";C:\Program Files (x86)\Microsoft SDKs\Windows Azure\PowerShell\"
 
#Add the paths in $p to the PSModulePath value.
[Environment]::SetEnvironmentVariable("PSModulePath",$p)

Save it into C:\Users\yusufozturk\Documents\WindowsPowerShell\profile.ps1.


Posted in Virtual Machine Manager, Windows Powershell | No Comment | 1,606 views | 01/04/2014 10:41

You can search a VM directory in Cluster Shared Volumes (CSV) with following script:

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# VM Name
$VMName = "VM Test"
 
# Get Cluster Nodes
$ClusterNodes = "vmhost01.domain.com","vmhost12.domain.com"
 
foreach ($ClusterNode in $ClusterNodes)
{
	$Volumes = Get-ChildItem -Directory -Path \\$ClusterNode\C$\ClusterStorage\
	foreach ($Volume in $Volumes)
	{
		$ConfigFolders = Get-ChildItem -Directory -Path \\$ClusterNode\C$\ClusterStorage\$Volume
 
		foreach ($ConfigFolder in $ConfigFolders)
		{
			$Result = "0";
 
			Write-Host $ConfigFolder
 
			if ($ConfigFolder -like "*$VMName*")
			{
				Write-Host " "
				Write-Warning "VMName: $VMName"
				Write-Warning "Volume: $Volume"
				Write-Warning "VMHost: $ClusterNode"
				Write-Host " "
			}
		}
	}
}

This script requires at least PowerShell v3 to work.


Posted in Virtual Machine Manager, Windows Powershell | No Comment | 1,766 views | 31/03/2014 17:04

You can grant a user role to a virtual machine with following command:

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$UserRole = Get-SCUserRole -Name "Test User Role"
$VM | Set-SCVirtualMachine -Owner $UserRole.Members[0].Name -UserRole $UserRole
Grant-SCResource -Resource $VM -UserName $UserRole.Members[0].Name -UserRoleID @($UserRole.ID.Guid)

After that you will be able to reach it from System Center App Controller.


Posted in Virtual Machine Manager, Windows Powershell | 2 Comments | 3,772 views | 31/03/2014 16:45

You can use following script to get VM CPU Counts on SCVMM 2012 R2:

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PS C:\Users\yusufozt\Desktop> $Results = Get-VM | Measure-Object -Property CPUCount -Sum
PS C:\Users\yusufozt\Desktop> $Results
 
Count    : 108
Average  :
Sum      : 292
Maximum  :
Minimum  :
Property : CPUCount

You can get total count by using $Results.Sum value.


Posted in Virtual Machine Manager, Windows Powershell | 2 Comments | 6,050 views | 25/03/2014 16:50

You can get VM list in a VMHostCluster with following command:

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((Get-SCVMHOST -VMHostCluster $Cluster).Name | foreach { Get-VM -VMHost $_ }).Name

That will output all virtual machine names in that cluster.


Posted in Virtual Machine Manager, Windows Powershell, Windows Server | No Comment | 1,738 views | 25/03/2014 16:44

You can use this script to move your VMs into another Cloud (Cloud Migration) and Cluster on SCVMM 2012 R2.
This script only works on SCVMM 2012 R2 due to vHBA control.
You can remove vHBA control to make it work on SCVMM 2012 SP1.

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# Parameters
$DestinationCloud = "New Cloud"
$DestinationHostCluster = "cluster.domain.com"
 
# Create VM Array
$VMArray = New-Object System.Collections.ArrayList
$VMArray.Clear();
 
# Add VMs into Array
$AddArray = $VMArray.Add("VM01")
$AddArray = $VMArray.Add("VM02")
$AddArray = $VMArray.Add("VM03")
$AddArray = $VMArray.Add("VM04")
 
# Get Destination Cloud
$Cloud = Get-SCCloud -Name $DestinationCloud
 
# Cloud Host Group Path
$HostGroupPath = (($Cloud.HostGroup)[0]).Path + "*"
 
foreach ($VMName in $VMArray)
{
	# Get VM
	$VM = Get-SCVirtualMachine -Name $VMName
 
	# Output
	Write-Host VM Name: $VMName
	Write-Host " "
 
	if ($VM.HasPassthroughDisk -eq $False -and $VM.HasVirtualFibreChannelAdapters -eq $False)
	{
		# Current Cloud
		$CurrentCloud = Get-SCCloud -Name $VM.Cloud.Name
 
		# Current Hyper-V Host
		$CurrentVMHost = Get-SCVMHost -ComputerName $VM.VMHost.Name
 
		# Create Job Guid
		$JobGuid = [System.Guid]::NewGuid().toString()
 
		# Remove from Cloud
		$SetCloud = $VM | Set-SCVirtualMachine -RemoveFromCloud
 
		# Get Best Available Hyper-V Host
		if ($DestinationHostCluster)
		{
			$VMHostName = (@(Get-SCVMHost | Where {$_.VMHostGroup -like $HostGroupPath -and $_.HostCluster.Name -eq $DestinationHostCluster -and $_.CoresPerCPU -eq $CurrentVMHost.CoresPerCPU -and $_.CPUArchitecture -eq $CurrentVMHost.CPUArchitecture -and $_.CPUFamily -eq $CurrentVMHost.CPUFamily } | Select Name,AvailableMemory | Sort AvailableMemory -Descending)[0]).Name
		}
		else
		{
			$VMHostName = ((Get-SCVMHost | Where {$_.VMHostGroup -like $HostGroupPath -and $_.CoresPerCPU -eq $CurrentVMHost.CoresPerCPU -and $_.CPUArchitecture -eq $CurrentVMHost.CPUArchitecture -and $_.CPUFamily -eq $CurrentVMHost.CPUFamily } | Select Name,AvailableMemory | Sort AvailableMemory -Descending)[0]).Name
		}
 
		if ($VMHostName)
		{
			# Output
			Write-Host Target Host: $VMHostName
 
			# Get Best Available CSV
			$VolumeName = ((Get-SCStorageVolume | Where {$_.VMHost -eq $VMHostName -and $_.IsClusterSharedVolume -eq $True} | Select Name,FreeSpace | Sort FreeSpace -Descending)[0]).Name
 
			# Output
			Write-Host Target Volume: $VolumeName
			Write-Host " "
 
			# Get Hyper-V Host Information
			$VMHost = Get-SCVMHost -ComputerName $VMHostName
			[int64]$VMHostAvailableMemory = [int64]$VMHost.AvailableMemory + 10240 		# Leave 10 GB Available Memory
 
			# Get CSV Information
			$Volume = Get-SCStorageVolume -Name $VolumeName -VMHost $VMHostName
			[int64]$VolumeFreeSpace = [int64]$Volume.FreeSpace + 107374182400 			# Leave 100 GB Free Space
 
			# Control Free Memory
			if ($VM.Memory -lt $VMHostAvailableMemory -and $VM.TotalSize -lt $VolumeFreeSpace)
			{
				# Get Virtual Network Adapters
				$VirtualNetworkAdapters = $VM | Get-SCVirtualNetworkAdapter
 
				foreach ($VirtualNetworkAdapter in $VirtualNetworkAdapters)
				{
					# Clear VM Network
					$VMNetwork = $Null;
 
					# Get VM Network
					$VMNetwork = Get-SCVMNetwork | Where {$_.Name -eq $VirtualNetworkAdapter.VMNetwork.Name}
 
					if (!$VMNetwork)
					{
						$VMNetwork = Get-SCVMNetwork | Where {$_.VMSubnet.SubnetVLANs.VLanID -eq $VirtualNetworkAdapter.VLanID}
					}
 
					# Destination Virtual Network
					$VirtualNetwork = ((Get-VM -Cloud $Cloud | Where {$_.VirtualNetworkAdapters.VMNetwork.Name -eq $VirtualNetworkAdapter.VMNetwork.Name -and $_.VirtualNetworkAdapters.VirtualNetwork})[0]).VirtualNetworkAdapters.VirtualNetwork
 
					# Set VM Network Adapter
					$SetSCVirtualNetworkAdapter = Set-SCVirtualNetworkAdapter -VirtualNetworkAdapter $VirtualNetworkAdapter -VirtualNetwork $VirtualNetwork -VMNetwork $VMNetwork -JobGroup $JobGuid
				}
 
				# Move VM
				$MoveSCVirtualMachine = $VM | Move-SCVirtualMachine -VMHost $VMHostName -HighlyAvailable $True -UseLAN -UseDiffDiskOptimization -JobGroup $JobGuid -Path $VolumeName
 
				Write-Host "Migration process is finished."
				Write-Host "Please check job results to ensure that if operation is successful.."
				Write-Host " "
				Write-Host " "
 
				# Set Cloud
				$SetCloud = $VM | Set-SCVirtualMachine -Cloud $Cloud
 
				# Refresh VM
				$RefreshVM = $VM | Refresh-VM
			}
			else
			{
				Write-Host "Not enough resources to move VM.."
				Write-Host "Skipping migration.."
				Write-Host " "
				Write-Host " "
 
				# Set Cloud
				$SetCloud = $VM | Set-SCVirtualMachine -Cloud $CurrentCloud
			}
		}
		else
		{
			Write-Host "There is no available host to migrate VM.."
			Write-Host "Skipping migration.."
			Write-Host " "
			Write-Host " "
		}
	}
	else
	{
		Write-Host "VM has Pass-through disks or vHBA.."
		Write-Host "Skipping migration.."
		Write-Host " "
		Write-Host " "
	}
}

After migrations, please check SCVMM job results to see if migrations are successful.

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