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4. Maintenance of the Server
Express5800/R320c-E4, R320c-M4 Maintenance Guide (Linux)
30
Chapter 1 Maintenance
4.2
Check and Clear of MTBF Information
The MTBF information of a component can be viewed or cleared (initialized).
Important Stop the relevant CPU module and PCI module before replacing components.
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.
Important Before clearing MTBF and forcedly enable the component, contact your
maintenance personnel for the forced use of such a component.
4.2.1
Available status
The table below shows the potential cases in which the MTBF information can be cleared.
Component
Status of component
CPU module
•
Broken
•
MTBF is lower than the threshold.
PCI module
•
Broken
•
MTBF is lower than the threshold.
Tips
The status of component can be verified on screen of NEC ESMPRO Manager or ft Server
Utility.