# Script to connect to a list of vCenter Servers, and get their version numbers, as well as the version numbers of their hosts
# Ben Neise
# 02/10/09
 
# Array of vCenter Servers
$arrVCenterServers = @("server1","server2","server3")
 
# Create empty arrays for the results
$arrTableVCs = @()
$arrTableHosts = @()
 
# Loop through the array of vCenter servers specified above
ForEach ($strVCenterServer in $arrVCenterServers){
	# Connect to the VC
	$objVCenterServer = Connect-VIServer $strVCenterServer
	# Version info about the VC you are connected to
	$viewVCenterServer = Get-View serviceinstance
	# Add custom attributes to each VC objects for version and build
	$objVCenterServer | Add-Member -Name Version -type noteproperty -value ($viewVCenterServer.content.about.Version) -Force
	$objVCenterServer | Add-Member -Name Build -type noteproperty -value ($viewVCenterServer.content.about.Build) -Force
	# Add the VC object to the results array
	$arrTableVCs += $objVCenterServer
	# When connected to loop through the hosts managed by the VC
	ForEach ($objHost in (Get-VMhost | Sort-Object)){
		# Get the view for the current host
		$viewHost = $objHost | Get-View
		# Add custom attributes to the host object for VC server, Host and Version
		$objHost | Add-Member -Name VCServer -type noteproperty -value $objVCenterServer.Name -Force
		$objHost | Add-Member -Name Host -type noteproperty -value $viewHost.Name -Force
		$objHost | Add-Member -Name Version -type noteproperty -value $viewHost.Config.Product.Version -Force
		# Add the host object to the results array
		$arrTableHosts += $objHost
	}
	# Disconnect from the VC server
	Disconnect-VIServer -Confirm:$False
}
# Output the VC results (can be modified to output to a CSV with Export-CSV)
$arrTableVCs | Select-Object Name, Version, Build | Sort-Object Name
 
# Output the Host results (can be modified to output to a CSV with Export-CSV)
$arrTableHosts | Select-Object VCServer, Host, Version, Build | Format-Table
 
# End of script

# Sets up virtual port groups on all hosts connected to a specific vCenter Server
 
# Name of vCenter Server
$strVCenterServer = "your.vCenter.Server"
 
# VLANs and associated VPGs
$ArrVLANs = @{
	"123" = "Admin";
	"456" = "GPO";
	"789" = "NAG";
}
 
# Connect to the vCenter Server
Connect-VIserver $strVCenterServer
 
# Loop through the VLAN/VPG pairs
ForEach($objVLAN in ($ArrVLANs.Keys | Sort-Object)){
	# Loop through the hosts
	ForEach ($objHost in (Get-VMHost | Sort-Object)){
		# Create the VPG with the VLAN as specified in the array above, on the switch called "VMSwitch" on the current host
		# Remove the "-WhatIf" tag from the end of the following line to "arm" the script
		New-VirtualPortGroup -Name $strNewVPG -VirtualSwitch (Get-Virtualswitch -VMHost $objHost | Where-Object { $_.Name -match "VMswitch" }) -VLanId $strNewVlanTag -WhatIf
		# Write what we've just done to screen
		Write-Host "Adding Virtual Port Group" $ArrVLANs[$objVLAN] "with VLAN Tag" $objVLAN "to" $objHost
	}
}
# Disconnect the session from the host
Disconnect-VIServer -Confirm:$False

Write-Host Exporting $CustomizationProfile.name

# Get all templates
$objTemplates = Get-Template
 
# Loop through the templates
ForEach ($objTemplate in $objTemplates){
	# Set the $StrInterimTemplateName variable to the template name, replacing the string "Tmpl" with an empty string
	$StrInterimTemplateName = ($objTemplate.Name -replace("Tmpl",""))
	# As the string we've just removed might be anywhere in the name, we need to replace double spaces with single
	$StrInterimTemplateName = ($StrInterimTemplateName -replace("  "," "))
	# And also remove trailing spaces from the start, or the end of the string
	$StrInterimTemplateName = $StrInterimTemplateName.Trim()
	# Display on screen what we're doing (as the "Set-Template" with -WhatIf isn't very clear
	Write-Host Changing `[($objTemplate.Name)`] to `[ Tmpl $StrInterimTemplateName `]
	# Change the Template Name to the $StrInterimTemplateName variable preceeded by "Tmpl", uncomment the #-WhatIf if testing
	Set-Template -Template $objTemplate -Name "Tmpl $StrInterimTemplateName" #-WhatIf
}

# Check if Servers on Text List exist on VMware
# Assumes that the VM object name matches the server's DNS name
 
# Set this to the text file containing the list of servers, one per line
$strServerList = "C:\path\to\textFile.txt"
 
# Create empty array for servers which are found
$arrFoundServers = @()
 
# Assign all of the VM objects to a variable
$objVMs = Get-VM
 
# Read the list of servers, and assign it to a variable
$strServersOnList = (Get-Content $serverlist)
 
# Loop through each VM
forEach ($objVM in $objVMs){
	# Loop through each server on the list
	forEach ($strServer in $strServersOnList){
		# If the current VM object name matches the current item on the list
		if ($objVM.Name -Like $strServer){
			# Add it to the array of found machines
			$arrFoundServers += $objVM
		}
	}
}
 
# Display the list of found machines
$arrFoundServers

# Add drive persistence as a custom attribute for VMs and Templates
 
$VCServerName = "MyVCServer"
$VC = Connect-VIServer $VCServerName
$SI = Get-View ServiceInstance
$CFM = Get-View $SI.Content.CustomFieldsManager
 
# Variables
$CustomFieldName = “HD Persistence”
$ManagedObjectType = “VirtualMachine”
 
# Check if the custom field already exists
$myCustomField = $CFM.Field | Where {$_.Name -eq $CustomFieldName}
If (!$myCustomField){
	# Create Custom Field
	$FieldCopy = $CFM.Field[0]
	$CFM.AddCustomFieldDef($CustomFieldName, $ManagedObjectType, $FieldCopy.FieldDefPrivileges, $FieldCopy.FieldInstancePrivileges)
}
 
# Get the machine objects
$objVMs = (Get-VM) + (Get-Template)
# Loop through each of the machine objects
ForEach ($objVM in $objVMs){
	$strPersistence = ""
	$objHardDisks = $objVM | Get-HardDisk
	# Count the number of hard drives
	$intHardDisks = ($objHardDisks | Measure-Object).count
	# Loop through each of the hard disks
	ForEach ($objHardDisk in $objHardDisks){
		# Replace default persisstence states with initials for brevity
		Switch ($objHardDisk.Persistence) {
			Persistent {
				$strPersistenceInitial = "P"
			}
			IndependentPersistent {
				$strPersistenceInitial = "IP"
			}
			IndependentNonPersistent {
				$strPersistenceInitial = "INP"
			}
		}
		# Concatenate the initial onto the persistence string
		$strPersistence = "$strPersistence" + $strPersistenceInitial
		# If there are more hard drives to add
		If ($intHardDisks -gt 1) {
			# Append a comma and a space (there may be a more elegant way of doing this)
			$strPersistence = "$strPersistence" + ", "
			# Count down the number of hard drives
			$intHardDisks -= 1
		}
	}
	# Add the $strPersistence to custom attribute $CustomFieldName (HD Persistence)
	If ($strPersistence){
		$VMView = $objVM | Get-View
		$VMView.setCustomValue($CustomFieldName,$strPersistence)
	}
}
 
# End of script