Use the following procedure to restart a cluster node or to take a cluster node offline for maintenance:

1. Verify the health status of your cluster and volumes:
   • Get-ClusterPerformanceHistory -FriendlyName *Cluster* | Get-StorageHealthReport
   • Get-physicaldisk
   • Get-virtualdisks
2. Suspend the cluster node:
   • Suspend-ClusterNode -name “Hostname” -Drain
3. Enable storage maintenance mode:
   • Get-StorageFaultDomain -type StorageScaleUnit | Where-Object {$_.FriendlyName -eq "<Hostname>"} | Enable-StorageMaintenanceMode
4. Suspend the BitLocker:
   • Suspend-BitLocker -MountPoint "C:" -RebootCount 0
5. Restart the server or shut it down for maintenance.
6. Disable storage maintenance mode.
   • Get-StorageFaultDomain -type StorageScaleUnit | Where-Object {$_.FriendlyName -eq "<Hostname>"} | Disable-StorageMaintenanceMode
7. Resume the cluster node:
   • Resume-ClusterNode -Name “Hostname” -Failback Immediate
   • Resume-BitLocker -MountPoint "C:"

For more information, see Taking a Storage Spaces Direct server offline for maintenance.