Lucent Technologies DEFINITY Performance Management Release 2.0 User Guide

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808Issue 1
November 1998
Page 201
10
10Maintenance and Error RecoveryChapter Contents•Introduction
202
•Error Recovery
203
•System Notification of Errors
205
•Process Trace
206
•Event Types Exception and Error
207
•Message Type SWERR
208 

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryIntroduction
Issue 1
November 1998
Page 202
Introduction
This chapter describes various aspects of maintaining Performance Management. 
It also describes how the system recovers from various errors. Topics included in 
this chapter are:
• What Performance Management does upon initialization
• Errors and how the system handles them
• Trace file description
• Event type description 

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryError Recovery
Issue 1
November 1998
Page 203
Error Recovery
Performance Management handles errors in the following manner:Type of Error Description How System HandlesSNMP errors Errors returned to the 
application software 
from the lowest 
SNMP software. 
Usually result in data 
collection failure.• Informs user of error by alert in Data 
Collection node in left pane.
• Logs the error in the event log....

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryError Recovery
Issue 1
November 1998
Page 204
SNMP No 
ResponseProblem with the 
network or Proxy 
Agent.• Retries the request. If retries fail, 
displays an alert in the Data 
Collection node.
• Logs the error in the event log.
• Posts an alert in the Data Collection 
node.
• Stops requesting data from the 
failed managed node, but continues 
to request data from the other 
managed nodes as scheduled.
•...

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoverySystem Notification of Errors
Issue 1
November 1998
Page 205
System Notification of Errors
Performance Management provides information for errors that can prevent the 
system from performing its task. Errors can display in the following ways:
• Pop-up error messages
• Alerts shown in the left pane
Error and 
Exception Log
All performance exceptions and selected errors are recorded in the database in 
an...

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryProcess Trace
Issue 1
November 1998
Page 206
Process TraceDescription
Each pprocess writes a message to a common trace file. The message has:
•Time stamp
• Process name
• User name
• Managed node name (or “DPM” if message is not related to a managed node)
• Text description that varies with the message type
About LOG and 
TRACE
Message types LOG and TRACE are normal application progress messages. 
LOG...

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryEvent Types Exception and Error
Issue 1
November 1998
Page 207
Event Types Exception and Error
The start and end of an exception or error alert is logged in the trace file. The 
events are described in the following table:Exception Event DescriptionProcessor occupancy Call processing occupancy, occupancy threshold
Trunk group GOS Trunk group number, exception criteria, size, 
recommended size
Scheduled...

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryMessage Type SWERR
Issue 1
November 1998
Page 208
Message Type SWERR
These are internal software errors that do not cause an alert, though they may 
cause other failures that will cause alerts.SWERR Event DescriptionInternal SNMP errors Error code and error 
string, if available
Abnormal process 
terminationProcess name 

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808
10Maintenance and Error RecoveryDelete Managed Node from Database
Issue 1
November 1998
Page 209
Delete Managed Node from Database
When a managed node is permanently removed from the Proxy Agent, its data 
remains in the database. Since the data for the managed node is not necessary, 
you can delete the data from the database by following this procedure.
Procedure
To remove the data for a managed node from the database, do the...

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808 Issue 1
November 1998
Page 210
10Index
Symbols
$APP_DEF/OVw file, to assign custom color
50
Numerics
3-dimensional, in chart setup
160
A
active events
185
aggregator
in report format
160
in sample chart
161
Alarm Forwarding Status field
56
alarm notification, to set up
73
alarm states
65
alarm, methods of notification
72
alarms
for Proxy Agent
64
Proxy Agent
65
alert icons
188
alert indicator
86
,95
alert indicators, on event log
181...