Messages Reference Guide

26 Event Message Reference
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.
Ta b le 2-7 lists the redundancy unit messages.
1253 Chassis intrusion in
progress
Sensor location: <Location
in chassis>
Chassis location: <Name of
chassis>
Previous state was: <State>
Chassis intrusion state:
<Intrusion state>
Warning A chassis intrusion sensor in the specified
system detected that a system cover is currently
being opened and the system is operating.
The sensor location, chassis location, previous
state, and chassis intrusion state are provided.
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.
1255 Chassis intrusion sensor
detected a non-recoverable
value
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 an error from which it cannot
recover. The sensor location, chassis location,
previous state, and chassis intrusion state are
provided.
Table 2-6. Chassis Intrusion Messages (continued)
Event ID Description Severity Cause