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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.
ontape backup and restore system
Back up with ontape
Create a backup
Prepare for a backup
Back up to a directoryIf you choose to back up to a directory, you do not need to provide tapes. Instead, you back up the data to a directory of a local file system or a directory that has been mounted on the local system.
Rename existing filesWhen ontape repeats an archive operation, it renames the existing files so that old files are not rewritten. A timestamp is added to the file name, which provides a way for related storage space or logical log files to be organized together.

Rename existing files

When ontape repeats an archive operation, it renames the existing files so that old files are not rewritten. A timestamp is added to the file name, which provides a way for related storage space or logical log files to be organized together.

Renaming conventions:

Storage-space archive files
The archive checkpoint time is added, and has the format servername_YYYYMMDD_hhmmss_archive-level.
Logical log backup files
The backup time is added, and has the format servername_YYYYMMDD_hhmmss.

For example, the file My_instance_L0 is renamed to My_instance_20080913_091527_L0

When restoring from a file system directory, ontape requires that storage-space archive and logical-log backup files be named as specified by the TAPEDEV and LTAPEDEV parameters. If files have been renamed, including by ontape because of repeated archives and backups, files must be manually renamed to their original file names.