Check And Clear Of Mtbf Information - NEC NovaScale R630 User Manual

Check and Clear of MTBF Information

The MTBF information of a component can be viewed or cleared (initialized).
Fault Tolerant Server series manages the MTBF (mean time between failure) of each component. If a fault occurs in a
component, the Fault Tolerant Server series calculates the MTBF of the component again. If the calculated value is
lower than the pre-defined threshold, the Fault Tolerant Server 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.
Component
SCSI
Enclosure
SCSI
Electronics
SCSI Slot
Remote: Executable from remote management PC by using NEC ESMPRO Manager
Local: Executable on local server by using ft server utility
–: Not support
MTBF clear
Remote
–
MTBF clear
Remote
–
–
–
Local
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:
•
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
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):
•
The amber LED is on.
•
The event indicating that MTBF is lower
than the threshold is registered in the
event log.
–
Local
–
–
–
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