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
Logical drive 2 configured on array controller P410i [Embedded] returned a fatal error during a read/write request from/to the volume.
Logical block address 6303024, block count 8 and command 32 were taken from the failed logical I/O request.
Array controller P410i [Embedded] is also reporting that the last physical drive to report a fatal error condition (associated with this logical request), is located on bus 0 and ID 3.
The HP Array Controller Utility showed everything was working properly. When i tried to run the diagnostics i was unable to do so as a VB error popped up. Instead of troubleshooting that issue (we are most likely going to replace this server with a VM in a month or so) I decided to look at the CLI utility instead. Could not remember the commands to show the config and the status. So off to google i went, here are the commands i found useful:
ctrl all show config
ctrl all show config detail
controller all show status