Filtering of error information, Filtering of error information -35 – HP Hitachi Dynamic Link Manager Software User Manual

Page 59

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The following shows an example where the system function name is user,

and messages at the info level or higher are output to the /tmp/
syslog.user.log file:

user.info /tmp/syslog.user.log

For details on error levels, see

Filtering of Error Information on page 2-35

.

Filtering of Error Information

Errors detected by HDLM are classified into various error levels. The following

table lists and describes the error levels, in the order of most to least severe

to the system.

Table 2-9 Error Levels

Error level

Meaning

Critical

Fatal errors that might stop the system.

Error

Errors that adversely affect the system. This type of error can be

avoided by performing a failover or other countermeasures.

Warning

Errors that enable the system to continue but, if left, might cause

the system to improperly operate.

Information

Information that simply indicates the operating history when the

system is operating normally.

Error information is filtered by error level, and then collected.

The error level is equivalent to the level of the messages output by HDLM.

For details on the level of the message, see

Format and Meaning of Message

IDs on page 8-3

.

In syslog, the HDLM messages on or above the level set by the user

configured in syslogd settings file are collected. It is recommended that you

set the information to be output at the Information level or higher.

Note that all the facilities when HDLM outputs messages in syslog are user.

The error information in error logs and trace files are collected based on a

user-defined collection level. The collection levels are as follows:

Collection levels for error logs

¢

Collects no error information.

¢

Collects error information from the Error level and higher.

¢

Collects error information from the Warning level and higher.

¢

Collects error information from the Information level and higher.

¢

Collects error information from the Information level and higher

(including maintenance information).

Collection levels for log information in trace files:

¢

Outputs no trace information

HDLM Functions

2-35

Hitachi Dynamic Link Manager User Guide for Linux

®

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