You can specify the amount of log data to store for Scanners components. You can set Scanner log levels in five increments from error level to debug level. Each succeeding log level after errors includes log data for all of the previous log levels.
For example, if you set the log level for Conduit to the notice level, Conduit errors and warnings events are stored also. You can only view Conduit log data for the notice, errors, and warnings events. Conduit information and debug events are not stored and are not viewable in the Control Center or syslog in this example.
The level that you select should contain the type of information that you want to monitor. Avoid the information and debug log levels because they can consume large amounts of disk space and require extensive processing resources to create log reports.
You can modify logging levels at any time. For instance, if you need to troubleshoot a problem, you can increase the logging level. When you resolve the problem, you can return the log level to its previous setting.
You may need to restart Scanner services after changing log levels.
High logging levels are those that produce high volumes of data but tend to be of a non-urgent nature. Low logging levels are those that produce lower volumes of data but tend to be of a more urgent nature.
High log levels (such as debug) can affect the logging process. If the Scanner disk cache nears or reaches capacity, the system switches to reduced logging mode or halted logging mode. In reduced mode, only urgent logs are copied to the Control Center log database. In halted mode, no log files are copied to the log database. You must clear disk cache, purge log database, and adjust log levels to resume normal logging.
You can specify log levels for local Scanners and remote Scanners. You can configure different logging levels for each local Scanner, or you can propagate settings to all of your local Scanners. You must have Full Administration rights and Manage Status and Logs modify rights to change log levels. You cannot change the log levels for the Control Center and Spam Quarantine.