In This Chapter

This chapter explains how to use the onbar utility to back up and verify storage spaces (dbspaces, blobspaces, and sbspaces) and logical-log files. The onbar utility is a wrapper to onbar_d, the ON–Bar driver. Use any of the following methods to execute ON–Bar backup and restore commands:

• Issue ON–Bar commands.

  To execute ON–Bar commands, you must be user informix or a member of the bargroup group on UNIX or a member of the Informix-Admin group or user informix in Windows. (For more information, see Creating the bargroup Group (UNIX).)

• Include ON–Bar and ISM commands in a shell or batch script.

  For information, see Customizing ON-Bar and Storage-Manager Commands.

• Call ON–Bar from a job-scheduling program.
• Set event alarms that trigger a logical-log backup.

  For information, see Backing Up Logical Logs on Dynamic Server and Backing Up Logical Logs on Extended Parallel Server.