50
Troubleshooting
Is the controller back panel CRU OK LED off?
Is the controller back panel Fault/Service Required LED amber?
Are both disk drive module LEDs off?
NOTE:
See
Disk drives used in S3200/S2200 enclosures
on page 15.
Is the disk drive module Fault LED amber?
NOTE:
See
FDE considerations
on page 21 for S3200 enclosures.
Answer
Possible reasons
Actions
No
(blinking)
System functioning properly.
System is booting.
No action required.
Wait for system to boot.
Yes
The controller module is not powered on.
The controller module has failed.
•
Check that the controller module is fully inserted
and latched in place, and that the enclosure is
powered on.
•
Check the event log for specific information
regarding the failure.
Table 8
Diagnostics LED status: Rear panel “CRU OK”
Answer
Possible reasons
Actions
No
System functioning properly.
No action required.
Yes (blinking)
One of the following errors
occurred:
•
Hardware-controlled power-up error
•
Cache flush error
•
Cache self-refresh error
•
Restart this controller from the other controller
using the SMC or the CLI.
•
If the above action does not resolve the fault,
remove the controller module and reinsert it.
•
If the above action does not resolve the fault,
contact Lenovo for assistance. It may be necessary
to replace the controller module.
Table 9
Diagnostics LED status: Rear panel “Fault/Service Required”
Answer
Possible reasons
Actions
Yes
•
There is no power
•
The drive is offline
•
The drive is not configured
Check that the drive is fully inserted and latched in
place, and that the enclosure is powered on.
Table 10
Diagnostics LED status: Disk drives (LFF and SFF modules)
Answer
Possible reasons
Actions
Yes, and the
online/activity
LED is
off
.
The disk drive is offline. An event
message may have been received
for this device.
•
Check the event log for specific information regarding
the fault.
•
Isolate the fault.
•
Contact Lenovo for assistance.
Yes, and the
online/activity
LED is
blinking
.
The disk drive is active, but an event
message may have been received
for this device.
•
Check the event log for specific information regarding
the fault.
•
Isolate the fault.
•
Contact Lenovo for assistance.
Table 11
Diagnostics LED status: Disk drive fault status (LFF and SFF modules)
