Reference Guide
Icon Alert Severity Component Status
the normal start or stop of an operation, such as power supply
or a sensor reading returning to normal.
Warning / Non-critical An event that is not necessarily signicant, but may indicate a
possible future problem. For example, a Warning/Non-critical
alert may indicate that a component (such as a temperature
probe in an enclosure) has crossed a warning threshold.
Critical / Failure / Error A signicant event that indicates actual or imminent loss of
data or loss of function. For example, crossing a failure
threshold or a hardware failure such as an array disk.
Server Administrator generates events based on status changes in the following sensors:
• Temperature Sensor — Helps protect critical components by alerting the systems management console when temperatures become
too high inside a chassis; also monitors the temperature in a variety of locations in the chassis and in attached system(s).
• Fan Sensor — Monitors fans in various locations in the chassis and in attached system(s).
• Voltage Sensor — Monitors voltages across critical components in various chassis locations and in attached system(s).
• Current Sensor — Monitors the current (or amperage) output from the power supply (or supplies) in the chassis and in attached
system(s).
• Chassis Intrusion Sensor — Monitors intrusion into the chassis and attached system(s).
• Redundancy Unit Sensor — Monitors redundant units (critical units such as fans, AC power cords, or power supplies) within the
chassis; also monitors the chassis and attached system(s). For example, redundancy allows a second or nth fan to keep the chassis
components at a safe temperature when another 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
there is one less critical redundancy device than required.
• Power Supply Sensor — Monitors power supplies in the chassis and in attached system(s).
• Memory Prefailure Sensor — Monitors memory modules by counting the number of Error Correction Code (ECC) memory
corrections.
• Fan Enclosure Sensor — Monitors protective fan enclosures by detecting their removal from and insertion into the system, and by
measuring how long a fan enclosure is absent from the chassis. This sensor monitors the chassis and in attached system(s).
• AC Power Cord Sensor — Monitors the presence of AC power for an AC power cord.
• Hardware Log Sensor — Monitors the size of a hardware log.
• Processor Sensor — Monitors the processor status in the system.
• Pluggable Device Sensor — Monitors the addition, removal, or conguration errors for some pluggable devices, such as memory
cards.
• Battery Sensor — Monitors the status of one or more batteries in the system.
• SD Card Device Sensor — Monitors instrumented Secure Digital (SD) card devices in the system.
Sample Event Message Text
The following example shows the format of the event messages logged by Server Administrator.
EventID: 1000
Source: Server Administrator
Category: Instrumentation Service
Type: Information
Date and Time: Mon Oct 21 10:38:00 2002
Computer: <computer name>
Introduction
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