2 filtering of error information – HP Hitachi Dynamic Link Manager Software User Manual
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2. HDLM Functions
42
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When you want to configure the system so that HDLM messages are output to
syslog, specify
user
for the facility in the syslog settings file. 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 2.11.2 Filtering of Error Information.
2.11.2 Filtering of Error Information
Errors detected by HDLM are classified into various error levels. Table 2-9: Error
Levels lists the error levels, in the order of most to least severe.
Table 2-9: Error Levels
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 8.1.1 Format and Meaning of Message IDs.
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.
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.
Informatio
n
Information that simply indicates the operating history when the system is operating normally.