Product manual
Chapter 8: Troubleshooting
329
Controller
The controller parameter(s) are 
changed by user
No action is required.
The controller is reset by Watch Dog 
timer
Result of a firmware update. If the 
condition persists, replace the 
controller.
The controller has new crash 
information
Contact Tech Support.
The controller’s heart beat has started
No action is required.
The controller’s heart beat has stopped
The partner controller’s heart beat has 
started
The partner controller’s heart beat has 
stopped
The partner controller’s heart beat has 
skipped
The controller’s main scheduler has 
frozen
Contact Tech Support if the condition 
persists.
Controller has entered maintenance 
mode since configured physical disk 
seen by partner controller is not seen 
here
Verify that all SATA drives have an 
SAS-to-SATA adapter installed.
Controller has entered maintenance 
mode due to mismatch of physical disks 
types
Check and correct SAS cabling and 
connections as needed.
Controller has entered maintenance 
mode due to mismatch of physical disk 
WWN
Update to the latest firmware. If the 
condition persists, replace the 
controller.
Controller has entered maintenance 
mode due to mismatch of SATA Disks
Check and correct data cabling and 
connections as needed.
Controller has entered maintenance 
mode due to mismatch of Disk IDs
Controller has entered maintenance 
mode since no physical disks are seen 
as seen by Partner controller
Reported Event Corrective Action










