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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.
Appendixes
Troubleshooting some backup and restore errorsThis appendix lists some error and informational messages that you can receive during a backup or restore, describes under what circumstances the errors might occur or the message might appear, and provides possible solutions or workarounds.

Troubleshooting some backup and restore errors

This appendix lists some error and informational messages that you can receive during a backup or restore, describes under what circumstances the errors might occur or the message might appear, and provides possible solutions or workarounds.

Find errors by viewing the ON-Bar activity log

The database server does not show errors in standard output (stdout) if an error occurs when you use onbar -b to back up storage spaces or onbar -r to restore storage spaces. Therefore, when you use onbar -b or onbar -r, you must check information in the ON-Bar activity log (bar_act_log). As ON-Bar backs up and restores data, it writes progress messages, warnings, and error messages to the bar_act.log.