In Cisco UCS, a fault is a mutable object that is managed by Cisco UCS. Each fault represents a failure in a Cisco UCS Standalone C-Series server or an alarm threshold that has been raised. During the life cycle of a fault, it can change from
one state or severity to another.
Each fault includes information about the operational state of the affected object at the time the fault was raised. If the
fault is transitional and the failure is resolved, then the object transitions to a functional state.
A fault remains in Cisco UCS Standalone C-Series servers until the fault is cleared and deleted according to the settings in the fault collection policy,
or until the Cisco Integrated Managment Controller (CIMC) is restarted.
The following table lists the Cisco UCS traps included in the CISCO-UNIFIED-COMPUTING-NOTIF-MIB.
Table 1. CISCO-UNIFIED-COMPUTING-NOTIF-MIB Traps
Trap
|
Description
|
cucsFaultActiveNotif
The OID for this SNMP trap is .1.3.6.1.4.1.9.9.719.0.1.
|
This notification is generated by a Cisco UCS instance whenever a fault is raised.
|
cucsFaultClearNotif
The OID for this SNMP trap is .1.3.6.1.4.1.9.9.719.0.2.
|
This notification is generated by a Cisco UCS instance whenever a fault is cleared.
|
All Cisco UCS Standalone C-Series server faults are available with SNMP using the cucsFaultTable table and the CISCO-UNIFIED-COMUTING-FAULT-MIB.
The table contains one entry for every fault instance. Each entry has variables to indicate the nature of a problem, such
as its severity and type. The same object is used to model all Cisco UCS fault types, including equipment problems, and configuration or environmental issues. The cucsFaultTable table includes all
active faults (those that have been raised and need user attention), and all faults that have been cleared but not yet deleted
because of the retention interval.
The cucsFaultTable table has the same information as the <faultInst> objects that can be queried through the XML API. In the Cisco UCS Standalone C-Series server WebUI, faults are available in from the Server tab under .
The following table describes the attributes exposed by the cucsFaultTable.
Table 2. cucsFaultTable Attritubes
Attribute
|
Description
|
Fault Instance ID (Table Index)
|
A unique integer that identifies the fault.
|
Affected Object DN
|
The distinguished name of the mutable object that has the fault.
|
Affected Object OID
|
The Object identifier (OID) of the mutable object that has the fault.
|
Creation Time
|
The time that the fault was created, depicted in UTC format.
|
Last Modification
|
The time when any of the attributes were modified.
|
Code
|
A code that provides information specific to the nature of the fault.
|
Type
|
The fault type.
|
Cause
|
The probable cause of the fault.
|
Severity
|
The severity of the fault. Fault severity transitions throughout the lifecyle of the fault, so several different fault severities
can be reported during the lifecyle of a fault. These include:
-
Original severity reported when the fault was first detected
-
Current severity reported for the fault
-
Previous severity reported for the fault
-
Highest severity reported for the fault
|
Occurrence
|
The number of times that a fault has occurred since it was created.
|
Description
|
A human readable string that contains all information related to the fault.
|
Cisco UCS Standalone C-Series servers send a cucsFaultActiveNotif event notification whenever a fault is raised. The trap variables
indicate the nature of the problem, including the fault type. Cisco UCS Standalone C-Series servers send a cucsFaultClearNotif event notification whenever a fault has been cleared. A fault is cleared
when the underlying issue has been resolved.
The cucsFaultActiveNotif and cucsFaultClearNotif traps are defined in the CISCO-UNIFIED-COMPUTING-NOTIFS-MIB. All faults can
be polled using SNMP GET operations on the cucsFaultTable, which is defined in the CISO-UNIFIED-COMPUTING-FAULT-MIB.
For more details about Cisco UCS Standalone C-Series server faults, see Cisco UCS C-series Servers Integrated Management Controller Faults Reference Guide.