Check And Clear Of Mtbf Information - NEC Express5800 Series User Manual

Check and Clear of MTBF Information

The MTBF information of a component can be viewed or cleared (initialized).
NEC Express5800/320Fc series manages the MTBF (mean time between failure) of each component.
If a fault occurs in a component, the NEC Express5800/320Fc series calculates the MTBF of the
component again. If the calculated value is lower than the pre-defined threshold, the NEC
Express5800/320Fc series 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 ft server utility, use the utility screen of the
component. 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.
Component
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.
Executable in the following module
state (this can be viewed on manager
screen):
Broken
MTBF is lower than the threshold.
PCI Module Same as above
Ethernet To start the module/component forcibly
Adapter after replacing a module or if MTBF
became lower than the threshold due
to malfunction and disabled the
module/component.
Executable in the following module
state (this can be viewed on manager
screen):
Broken
MTBF is lower than the threshold.
SCSI Adapter
IMPORTANT:You can also clear MTBF information for the PCI module, Ethernet Adapter and
SCSI Adapter by unplugging and plugging the live wire of the PCI module.
MTBF clear
Remote
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Installing and Using Utilities 5-55
Local
To start the module forcibly after replacing
a module or if MTBF is lower than the
threshold due to malfunction and disabled
the module.
Executable in the following module state:
The amber LED is on.
The event indicating that MTBF is lower
than the threshold is registered in the
event log.
Same as above
To start the module/component forcibly
after replacing a module or if MTBF is
lower than the threshold due to
malfunction and disabled the
module/component.
Executable in the following module state
(this can be viewed on manager screen):
The amber LED is on.
The event indicating that MTBF is lower
than the threshold is registered in the
event log.
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