Check And Clear Of Mtbf Information - NEC Express5800/R320c-E4 Maintenance Manual

Chapter 1 Maintenance
4.2

Check and Clear of MTBF Information

The MTBF information of a component can be viewed or cleared (initialized).
The server manages the MTBF (mean time between failure) of each component. If a fault occurs in a
component, the server calculates the MTBF of the component again. If the calculated value is lower than the
pre-defined threshold, the server disables the component to be used.
A disabled component with the MTBF lower than the threshold can be forcibly enabled by clearing the MTBF.
4.2.1 Available status
The table below shows the potential cases in which the MTBF information can be cleared.
Component
CPU module
PCI module
30
Important Stop the relevant CPU module and PCI module before replacing components.
Important Before clearing MTBF and forcedly enable the component, contact your
maintenance personnel for the forced use of such a component.
• Broken
• MTBF is lower than the threshold.
• Broken
• MTBF is lower than the threshold.
The status of component can be verified on screen of NEC ESMPRO Manager or ft Server
Tips
Utility.
Express5800/R320c-E4, R320c-M4 Maintenance Guide (Linux)
Status of component
4. Maintenance of the Server