diff --git a/backup.ps1 b/backup.ps1
index 233b21d..d639a93 100644
--- a/backup.ps1
+++ b/backup.ps1
@@ -3,7 +3,6 @@
 #
 # TODO: Update cleanup time based on backup type
 
-
 $sqlInstance = "sqlfcsql\TESTINST"
 #$directory = "H:\Backup"
 $directory = "C:\Rubrik\mount"
diff --git a/setActiveNode.ps1 b/setActiveNode.ps1
new file mode 100644
index 0000000..99e5b0b
--- /dev/null
+++ b/setActiveNode.ps1
@@ -0,0 +1,121 @@
+##########################################################################
+#
+# Update an SLA MV to point to the local host
+# Created by Rubrik PS for ZF, September 2025
+#
+# Must be run with a Global service account.
+#
+# Requires RubrikSecurityCloud module to be installed and working with
+# a Global Service Account with the following rights (TBC)
+#
+# Create the service account file with:
+# Set-RscServiceAccountFile sa.json -OutputFilePath Global.xml
+#
+# Example invocation
+# .\claimInstance.ps1 -sqlInstance "sqlfcsql\TESTINST" -mvName "JP-ZF-SQL"
+#
+# v0.1 Initial Release
+#
+##########################################################################
+
+param (
+  [Parameter(Mandatory=$False,
+  HelpMessage="Instance to claim")]
+  [string]$sqlInstance,
+
+  [Parameter(Mandatory=$False,
+  HelpMessage="Do not change the MV")]
+  [switch]$dryrun
+)
+
+# SA File must be an absolute path
+$GlobalSAFile = "C:\Rubrik\scripts\sa.xml"
+$logFile = "C:\Rubrik\scripts\claimInstance.log"
+$mvName = "JP-ZF-SQL"
+$sqlInstance = "sqlfcsql\TESTINST"
+$checkCluster = $true
+
+###########################
+# Script begins
+###########################
+
+$ErrorActionPreference = 'Stop'
+
+function Write-Log($message) {
+    $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
+    $logEntry = "$timestamp $message"
+    Add-Content -Path $logFile -Value $logEntry
+    Write-Host $logEntry
+}
+
+Import-Module RubrikSecurityCloud
+
+if ($checkCluster) {
+    # Check if SQL instance is running locally
+    $localNode = $env:COMPUTERNAME
+    $instanceName = $sqlInstance.Split('\')[1]
+    $clusterInstance = Get-ClusterResource | Where-Object { $_.ResourceType -eq "SQL Server" -and $_.Name -eq "SQL Server ($instanceName)" }
+    
+    if ($clusterInstance) {
+        $ownerNode = $clusterInstance.OwnerNode
+        if ($ownerNode -ne $localNode) {
+            Write-Log "SQL instance '$sqlInstance' is not running on local node '$localNode'. Updating the MV."
+            
+            Connect-Rsc -ServiceAccountFile $GlobalSAFile
+            Write-Log "Connected to Rubrik Security Cloud."
+
+            $newHost = Get-RscHost -Name $ownerNode -OsType WINDOWS
+
+            $query = New-RscQuery -GqlQuery slaManagedVolumes -AddField Nodes.HostDetail, Nodes.SmbShare, Nodes.ClientConfig, Nodes.ClientConfig.BackupScript, Nodes.ClientConfig.PreBackupScript
+            $query.var.filter = @(Get-RscType -Name Filter)
+            $query.var.filter[0].field = "NAME_EXACT_MATCH"
+            $query.var.filter[0].Texts = $mvName
+            $mvDetail = $query.Invoke().nodes[0]
+
+            Write-Log "Found Managed Volume: $($mvDetail.Name) (ID: $($mvDetail.Id), Status: $($mvDetail.hostDetail.Status), HostDetail Name: $($mvDetail.hostDetail.Name))"
+
+            $query = New-RscMutation -GqlMutation updateManagedVolume
+            $query.Var.input = Get-RscType -Name UpdateManagedVolumeInput
+            $query.Var.input.update = Get-RscType -Name ManagedVolumeUpdateInput
+            $query.Var.input.update.config = Get-RscType -Name ManagedVolumePatchConfigInput
+            $query.Var.input.update.slaClientConfig = Get-RscType -Name ManagedVolumePatchSlaClientConfigInput
+
+            $query.Var.input.Id = $mvDetail.Id
+            $query.Var.input.update.Name = $mvName
+            $query.Var.input.update.config.SmbDomainName = $mvDetail.SmbShare.DomainName
+            $query.Var.input.update.config.SmbValidIps = $newHost.Name
+            $query.Var.input.update.config.SmbValidUsers = $mvDetail.SmbShare.ValidUsers + $mvDetail.SmbShare.ActiveDirectoryGroups
+            $query.Var.input.update.slaClientConfig.clientHostId = $newHost.Id
+            $query.Var.input.update.slaClientConfig.channelHostMountPaths = $mvDetail.ClientConfig.ChannelHostMountPaths
+            $query.Var.input.update.slaClientConfig.backupScriptCommand = $mvDetail.ClientConfig.BackupScript.ScriptCommand
+            $query.Var.input.update.slaClientConfig.preBackupScriptCommand = $mvDetail.ClientConfig.PreBackupScript.ScriptCommand
+            $query.Var.input.update.slaClientConfig.preBackupScriptTimeout = $mvDetail.ClientConfig.PreBackupScript.Timeout
+            $query.Var.input.update.slaClientConfig.shouldDisablePostBackupScriptOnBackupFailure = $true
+            $query.Var.input.update.slaClientConfig.shouldDisablePostBackupScriptOnBackupSuccess = $true
+            $query.Var.input.update.slaClientConfig.shouldDisablePreBackupScript = $false
+            $query.Var.input.update.slaClientConfig.shouldCancelBackupOnPreBackupScriptFailure = $mvDetail.ClientConfig.ShouldCancelBackupOnPreBackupScriptFailure
+
+            $query.gqlRequest().Variables
+
+            if (-not $dryrun) {
+                $result = $query.Invoke()
+            } else {
+                Write-Log "Dry run mode: Managed Volume update not invoked."
+            }
+
+            # Now must exit 1 to stop the backup continuing on the wrong node
+            Disconnect-Rsc
+            exit 1
+
+        } else {
+            Write-Log "SQL instance '$sqlInstance' is running on local node '$localNode'. No action needed."
+        }
+    } else {
+        Write-Log "ERROR: SQL instance '$sqlInstance' not found in cluster resources."
+        exit 1
+    }
+} else {
+    Write-Log "INFO: Cluster check is disabled. Proceeding without verification."
+}
+
+Disconnect-Rsc
\ No newline at end of file