Owner's Manual

Trap Correlation 9
Redundancy Unit Traps
Redundancy indicates that a system chassis has more than one of certain
critical components. Fans and power supplies, for example, are so important
for preventing damage or disruption of a computer system that a chassis may
have "extra" fans or power supplies installed. Redundancy allows a second or
nth fan to keep the chassis components at a safe temperature when the
primary fan has failed. Redundancy is normal when the intended number of
critical components are operating. Redundancy is degraded when a
component fails but others are still operating. Redundancy is lost when the
number of components functioning falls below the redundancy threshold.
The number of devices required for full redundancy is provided as part of the
trap message when applicable for the redundancy unit and the platform. For
more details on redundancy computation, please refer to the respective
platform documentation.
Power Supply Traps
Power supply traps provide status and warning information for power supplies
present in a particular chassis.
Table 2-7. Redundancy Unit Traps
Trap
ID
Alert Name Related Alerts that are Cleared
1304 Redundancy Normal RedundancyDegraded (1305), RedundancyLost
(1306)
1305 Redundancy Degraded RedundancyLost (1306)
1306 Redundancy Lost RedundancyDegraded (1305)
Table 2-8. Power Supply Traps
Trap
ID
Alert Name Related Alerts that are Cleared
1352 Power Supply Normal PowerSupplyWarning (1353), PowerSupplyFailure
(1354)
1353 Power Supply Warning PowerSupplyFailure (1354)
1354 Power Supply Failure PowerSupplyWarning (1353)
book.book Page 9 Thursday, January 28, 2010 7:09 PM