diff --git a/Pester/Test Connection to VC.ps1 b/Pester/Test Connection to VC.ps1
index cf017bc..006825a 100644
--- a/Pester/Test Connection to VC.ps1	
+++ b/Pester/Test Connection to VC.ps1	
@@ -4,11 +4,15 @@ Created on: 07/15/2016
 Author: Alan Renouf, @alanrenouf
 Description: The purpose of this pester test is to ensure the PowerCLI modules are imported and a connection and disconnection can be made to a vCenter
 Dependencies: Pester Module
+Example run:
+
+Invoke-Pester -Script @{ Path = '.\Test Connection to VC.ps1'; Parameters = @{ VCNAME="VC01.local"; VCUSER="Administrator@vsphere.local"; VCPASS="Admin!23"} }
+
 #>
 
-$VCNAME = "MyVC@Mydomain.local"
-$VCUSER = "Administrator@vsphere.local"
-$VCPASS = "Admin!23"
+$VCUSER = $Parameters.Get_Item("VCUSER")
+$VCPASS = $Parameters.Get_Item("VCPASS")
+$VCNAME = $Parameters.Get_Item("VCNAME")
 
 Describe "PowerCLI Tests" {
     It "Importing PowerCLI Modules" {
diff --git a/Scripts/vRealize Operations Maintenance Mode.ps1 b/Scripts/vRealize Operations Maintenance Mode.ps1
new file mode 100644
index 0000000..a6ff9e5
--- /dev/null
+++ b/Scripts/vRealize Operations Maintenance Mode.ps1	
@@ -0,0 +1,116 @@
+Connect-VIServer vc-l-01a.corp.local -User administrator@vsphere.local -Password VMware1!
+Connect-OMServer vrops.corp1.local -User admin -Password VMware1!
+
+function Enable-OMMaintenance {
+      <#	
+	    .NOTES
+	        Script name: vRealize Operations Maintenance Mode.ps1
+            Created on: 07/26/2016
+            Author: Alan Renouf, @alanrenouf
+            Dependencies: PowerCLI 6.0 R2 or later
+	    .DESCRIPTION
+		    Places a vSphere Inventory object into maintenance mode in vRealize Operations
+        .Example
+        Set All VMs with a name as backup as being in maintenance mode for 20 minutes:
+
+        Get-VM backup* | Enable-OMMaintenance -MaintenanceTime 20
+
+        Name                         Health  ResourceKind    Description                                           
+        ----                         ------  ------------    -----------                                           
+        backup-089e13fd-7d7a-0       Grey    VirtualMachine                                                        
+        backup-d90e0b39-2618-0       Grey    VirtualMachine                                                        
+        backup-e48ca842-316a-0       Grey    VirtualMachine                                                        
+        backup-77da3713-919a-0       Grey    VirtualMachine                                                        
+        backup-c32f4da8-86c4-0       Grey    VirtualMachine                                                        
+        backup-c3fcb95c-cfe2-0       Grey    VirtualMachine                                                        
+        backup-4318bb1e-614a-0       Grey    VirtualMachine                                                        
+
+    #>
+    [CmdletBinding()]
+      param(
+            [Parameter(Position=0, Mandatory=$true, ValueFromPipeline=$true)]
+            [ValidateNotNullOrEmpty()]
+            [System.String]
+            $Resource,
+
+            [Parameter(Position=1, Mandatory=$true)]
+            [ValidateNotNullOrEmpty()]
+            [Int]
+            $MaintenanceTime
+      )
+      process {
+            Foreach ($Entry in $resource) {
+                  $Item = Get-Inventory -Name $Entry | Get-OMResource
+                  if (-not $Item) {
+                        throw "$Entry not found"
+                  } Else {
+                        $Item.ExtensionData.MarkResourceAsBeingMaintained($MaintenanceTime)
+                        Get-Inventory -Name $Entry | Get-OMResource
+                  }
+            }
+      }
+}
+
+function Disable-OMMaintenance {
+      <#	
+	    .NOTES
+	        Script name: vRealize Operations Maintenance Mode.ps1
+            Created on: 07/26/2016
+            Author: Alan Renouf, @alanrenouf
+            Dependencies: PowerCLI 6.0 R2 or later
+	    .DESCRIPTION
+		    Removes a vSphere Inventory object from maintenance mode in vRealize Operations
+        .Example
+        Disable maintenance mode for all VMs with a name of backup
+
+        Get-VM backup* | Disable-OMMaintenance
+
+        Name                         Health  ResourceKind    Description                                           
+        ----                         ------  ------------    -----------                                           
+        backup-089e13fd-7d7a-0       Grey    VirtualMachine                                                        
+        backup-d90e0b39-2618-0       Grey    VirtualMachine                                                        
+        backup-e48ca842-316a-0       Grey    VirtualMachine                                                        
+        backup-77da3713-919a-0       Grey    VirtualMachine                                                        
+        backup-c32f4da8-86c4-0       Yellow  VirtualMachine                                                        
+        backup-c3fcb95c-cfe2-0       Yellow  VirtualMachine                                                        
+        backup-4318bb1e-614a-0       Yellow  VirtualMachine                                                        
+
+    #>
+    [CmdletBinding()]
+      param(
+            [Parameter(Position=0, Mandatory=$true, ValueFromPipeline=$true)]
+            [ValidateNotNullOrEmpty()]
+            [System.String]
+            $Resource
+      )
+      process {
+            Foreach ($Entry in $resource) {
+                  $Item = Get-Inventory -Name $Entry | Get-OMResource
+                  if (-not $Item) {
+                        throw "$Entry not found"
+                  } Else {
+                        $Item.ExtensionData.UnmarkResourceAsBeingMaintained()
+                        Get-Inventory -Name $Entry | Get-OMResource
+                  }
+            }
+      }
+}
+
+Write-Host "Enable a single host as being in maintenance mode for 1 minute"
+Enable-OMMaintenance -Resource ESX-01a* -MaintenanceTime 1
+
+Write-Host "List All Host Resources and their state"
+Get-OMResource ESX-* | Select Name, State | FT
+
+Write-Host "Set All VMs with a name as backup as being in maintenance mode for 20 minutes"
+Get-VM backup* | Enable-OMMaintenance -MaintenanceTime 20
+
+Write-Host "List All Backup VM Resources and their state"
+Get-VM backup* | Get-OMResource | Select Name, State | FT
+
+Write-Host "Disable maintenance mode for all VMs with a name as backup as we have completed our scheduled work"
+Get-VM backup* | Disable-OMMaintenance
+
+Write-Host "List All VM Resources and their state"
+Get-VM backup* | Get-OMResource | Select Name, State | FT
+