Problem with scsi timeout errors on Rack Storage12/FC

[james gould]

The device \Device\ScsiPort4 did not respond
within the timeout period
Event ID: 9
Source HHBA5100


Have a FC Rack Storage 12 -Fiber
The above caused problems on the system. Rebooted the system after powering it down. Next it looked like it started to rebuild on the spare drive but there was not indication of drive failure. Now another drive looks like
it has failed. Any ideas about what the problem may be with the fiber array? Replaced the drive and have not been getting errors in
event viewer.

Thanks