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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
Backup and Restore GuideThe Informix® Backup and Restore Guide describes how to use the Informix® ON-Bar and ontape utilities to back up and restore database server data. These utilities enable you to recover your databases after data is lost or becomes corrupted due to hardware or software failure or accident.
ON-Bar backup and restore system
Customize and maintain ON-Bar
Expire and synchronize the backup catalogs
The onsmsync utility
Expire a generation of backups

Expire a generation of backups

The following example retains the latest three sets of level-0 backups and the associated incremental backups, and expires all earlier backups and all restores, fake backups, and failed backups: onsmsync -g 3

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