Reference Guide

Event ID — 1252
Description
Chassis intrusion returned to normal Sensor location: <Location
in chassis>
Chassis location: <Name of chassis>
Previous state was: <State>
Chassis intrusion state: <Intrusion state>
Severity Information
Cause 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 information is
provided.
Event ID — 1254
Description
Chassis intrusion detected Sensor location: <Location in
chassis>
Chassis location: <Name of chassis>
Previous state was: <State>
Chassis intrusion state: <Intrusion state>
Severity Critical
Cause 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 information is provided.
Redundancy Unit Messages
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. Lists the redundancy unit messages.
The number of devices required for full redundancy is provided as part of the message, when applicable,
for the redundancy unit and the platform. For details on redundancy computation, see the respective
platform documentation.
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