Hitachi Dynamic Link Manager Software Users Guide for Linux
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 (for Linux®) User Guide