5-54 Installing and Using Utilities
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 failures) of each component. If a fault occurs in
a component, the server series 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.
Contact your maintenance personnel if such a symptom as above occurs.
IMPORTANT:
A disabled component with the MTBF lower than the threshold can be forcibly enabled by
clearing the MTBF. However, contact your maintenance personnel for the forced use of such a
component.
To clear the MTBF information of a component with NEC ESMPRO Manager, use the
[Maintenance] tree of the component of the [ft] tree of the data viewer. Open the tree of the
component whose MTBF information is to be cleared and select the [Maintenance] tree.
To clear the MTBF information of a component with the Server Maintenance Utility, use the
component screens of the Server Maintenance Utility. The table below shows the potential cases in
which the MTBF information of a component is to be cleared. Contact your maintenance personnel
for clearing MTBF information.
MTBF clear
Component
Remote Local
CPU Module To start the module forcibly after
replacing a module or if MTBF became
lower than the threshold due to
malfunction and disabled the module.
To start the module forcibly after replacing
a module or if MTBF became lower than
the threshold due to malfunction and
disabled the module.
IO Module Same as above Same as above
Remote: Executable from remote management PC by using NEC ESMPRO Manager
Local: Executable on local server by using Server Maintenance Utility
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