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.
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.
In syslog, the HDLM messages on or above the level set by the user configured in syslog settings file are collected. It is recommended that you set the information to be output at the Information level or higher.
Note that all system function names (Facility), except for audit logs, are "user" when HDLM outputs messages in syslog.
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
Outputs error information only
Outputs trace information on program operation summaries
Outputs trace information on program operation details
Outputs all trace information
For details on how to set the collection level, see Setting up the HDLM functions.