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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
Backup and Restore GuideThe HCL OneDB™ Backup and Restore Guide describes how to use the HCL® OneDB® 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
Restore data with ON-BarYou can use the ON-Bar utility to restore data that was backed up by the ON-Bar utility.
Storage device availabilityVerify that the storage devices and files used in the backup are available for the restore.

Storage device availability

Verify that the storage devices and files used in the backup are available for the restore.

If you drop a dbspace or mirror device after a level-0 backup, the dbspace or mirror device must be available to the database server when you begin the restore. If the storage device is not available, the database server cannot write to the chunk and the restore fails.

If you add a chunk after your last backup, the chunk device must be available to the database server when it rolls forward the logical log.