Disk, Event ID 11 help

[Scott]

I have in event viewer (a lot):
The driver detected a controller error on
\Device\Harddisk2\D

I have 2 IDE and 2 SCSI drives. I'm getting this error a
lot in event logs.

Can someone tell me how to tell which drive it is causing
the error?

And what it means in case you know?

Thanks,
Scott