Had to look this up again today when troubleshooting an HP embedded array controller (P410i)   This issue i ran into was the event logs were displaying the following errors Event ID 11 The driver detected a controller error on \Device\Harddisk1. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. and Event ID 24606 … Continue reading HP Array Configuration Utility (ACU) CLI commands