Reference Guide

Traps 583
Chassis Intrusion Traps
Chassis intrusion traps are a security measure. Chassis intrusion means that someone is opening the
cover to a system’s chassis. Alerts are sent to prevent unauthorized removal of parts from a chassis.
Redundancy Unit Traps
Redundancy means 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.
Table 25-7. Chassis Intrusion Traps
Trap ID Description Severity Cause
Chassis Intrusion Normal
1252 Chassis intrusion returned to normal
Sensor location: <
Location in chassis >
Chassis location: <
Name of chassis >
Previous state was: <
State >
Chassis intrusion state: <
Intrusion
state
>
Information A chassis intrusion sensor in the
specified system detected that a
cover was opened while the system
was operating but has since been
replaced. The sensor location,
chassis location, previous state, and
chassis intrusion state are provided.
Chassis Intrusion Detected
1254 Chassis intrusion detected
Sensor location: <
Location in chassis >
Chassis location: <
Name of chassis >
Previous state was: <
State >
Chassis intrusion state: <
Intrusion
state
>
Error A chassis intrusion sensor in the
specified system detected that the
system cover was opened while the
system was operating. The sensor
location, chassis location, previous
state, and chassis intrusion state are
provided.