Maintenance Manual

5. Troubleshooting
Express5800/R120d-1M, R120d-2M Maintenance Guide
31
Chapter 1 Maintenance
Indication of
Reason for Diff in Write
Action
BBU not installed Displayed when battery is disconnected.
(1) Check if battery control cable (cable used to connect RAID Controller with
battery) is properly connected.
→ Connect cable properly.
(2) Is it displayed immediately after the battery was connected?
→ The battery may not be detected if it is insufficiently charged. If the
battery is not detected even after 24 hours have elapsed, restart the
server.
BBU is failed Displayed when battery is failed.
Contact your sales representative.
BBU is discharged Displayed when battery voltage is low.
Check the cache mode (current value) about 12 hours later.
BBU in re-learn cycle Displayed when battery is being refreshed.
Check cache mode (current value) about 12 hours later.
Reconstruction Displayed when battery is being reconstructed.
Check cache mode (current value) after reconstruction completes.
If the battery is not detected in spite of actions taken, the battery may be faulty.
Consult with your sales representative.
[?] Additional battery is not recognized or the following message is displayed in POST
The battery hardware is missing or malfunctioning,
or the battery is unplugged, or the battery could be
fully discharged. If you continue to boot the system,
the battery-backed cache will not function.
If battery is connected and has been allowed to charge
for 30 minutes and this message continues to appear,
then contact technical support for assistance.
Press ‘D’ to disable this warning (if your controller
does not have a battery.
 Are the cable between the battery pack and battery board and the control cable between the battery board
and battery connector connected correctly?
→ Connect the cables correctly.
 Is this message displayed after the battery is connected?
→ If the battery charging status is low, the battery may not be recognized. If the battery is not recognized
although 24 hours has passed, restart the system once.
If the battery is not recognized although the above action has been taken, the additional battery may be
faulty. Contact the maintenance service company with which you signed up or the dealer where you
purchased the product.
[?] Event ID129: The following message appears on Windows Event Log
Event source : megasas2
Event ID : 129
Type : Warning
Description : Information about Event ID (129) (Source: megasas2) is not found.
(The rest is skipped.)
→ Retry by OS has succeeded. It is not the problem in operating the system.