To ensure that you can recover your databases in the event of a failure, make frequent backups of your storage spaces and logical logs. You also can verify ON–Bar backups with the archecker utility.
How often you back up the storage spaces depends on how frequently the data is updated and how critical it is. A backup schedule might include a complete (level-0) backup once a week, incremental (level-1) backups daily, and level-2 backups hourly. You also need to perform a level-0 backup after performing administrative tasks such as adding a dbspace, deleting a logical-log file, or enabling mirroring.
Back up each logical-log file as soon as it fills. You can back up these files manually or automatically. For information on using ON–Bar and ontape, see the IBM Informix Backup and Restore Guide.
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