Configuring database logging options

Use database logging configuration parameters to specify data logging options for your database, such as the type of logging to use, the size of the log files, and the location where log files should be stored.

Before you begin

To configure database logging options, you must have SYSADM, SYSCTRL, or SYSMAINT authority.

About this task

You can configure database logging options by using the UPDATE DATABASE CONFIGURATION command on the command line processor (CLP), or by calling the db2CfgSet API.

Procedure

  • To configure database logging options by using the UPDATE DATABASE CONFIGURATION command on the command line processor:
    1. Specify whether you want to use circular logging or archive logging. If you want to use circular logging, the logarchmeth1 and logarchmeth2 database configuration parameters must be set to OFF. This setting is the default. To use archive logging, you must set at least one of these database configuration parameters to a value other than OFF. For example, if you want to use archive logging and you want to save the archived logs to disk, issue the following command:
         db2 update db configuration for mydb using logarchmeth1 
            disk:/u/dbuser/archived_logs
      The archived logs are placed in a directory called /u/dbuser/archived_logs.
    2. Specify values for other database logging configuration parameters, as required. The following additional configuration parameters apply to database logging:
      • archretrydelay
      • blk_log_dsk_ful
      • failarchpath
      • logarchcompr1
      • logarchcompr2
      • logarchmeth1
      • logarchmeth2
      • logarchopt1
      • logarchopt2
      • logbufsz
      • logfilsiz
      • logprimary
      • logsecond
      • max_log
      • mirrorlogpath
      • newlogpath
      • mincommit
      • numarchretry
      • num_log_span
      • overflowlogpath
      For more information about these database logging configuration parameters, see Configuration parameters for database logging.
  • To configure database logging options by using IBM® Data Studio, use the task assistant for the UPDATE DATABASE CONFIGURATION command.