Managing Mtbf Statistics; Error Detection And Handling - NEC Express5800/320Ma Technical Reference Manual

To remove an ftGateway group
1. Access the Express5800/320Ma gateway system. Start ftSMC.
2. Be sure to
3. In ftSMC, double-click the ftServer Configuration node to expand the child nodes
beneath it.
4. Right-click the ActiveService Network icon and click Remove ftGateway Group.

Managing MTBF Statistics

This section describes how the MTBF is calculated and how to display, clear, and set
the MTBF threshold. For information about the hard and soft errors that trigger the
system to evaluate the MTBF, see
The values stored in the registry are:
•
MtbfSerialNumber: Allows the system to detect if the board is new or different, and
to clear the MTBF. This value is used on a reboot and driver upgrade to maintain
MTBF statistics if the same board is in place; for the board replacement case, the
MTBF is cleared.
•
MtbfThreshold: In seconds, the value below which an event is triggered
•
MtbfCurrent: In seconds, the current MTBF value
•
MtbfTimeOfLastFault: The date and time of the last fault
•
MtbfNumberOfFaults: The total number of faults for this device
•
MtbfThresholdStatus: Indicates if the disk has experienced disk errors for which
calls home were generated. Usually set to "Normal". When the disk experiences an
01/5D or an 03/11 error, it is set to "Above critical threshold".
•
MtbfFaultLimit: The number of errors that can occur before an alarm is generated.
The default value is 1.
The system maintains MTBF statistics for these devices:
•
CPU elements
•
I/O elements
•
Virtual Technician Modules (VTMs)
•
Ethernet adapters

Error Detection and Handling

Hardware errors are detected by the hardware and then evaluated by the maintenance
and diagnostic software. After a hardware error, the software directs the affected
remove all slave systems from the ftGateway Group.
"Error Detection and Handling" on page
Express5800/320Ma System Features
Managing MTBF Statistics
2-3.
2-3