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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
Restore with ontape
Restore the whole systemThis section outlines the prerequisites and steps you need to complete to restore your entire database server with ontape.
Verify your database server configuration
Set shared-memory parameters to maximum assigned value

Set shared-memory parameters to maximum assigned value

Make sure that you set your current shared-memory parameters to the maximum value assigned after the level-0 backup. For example, if you decrease the value of USERTHREADS from 45 to 30 sometime after the level-0 backup, you must begin the restore with USERTHREADS set at 45, and not at 30, even though the configuration file copy for the last backup could register the value of USERTHREADS set at 30. (When you do not possess a record of the maximum value of USERTHREADS after the level-0 backup, set the value as high as you think necessary. You could reassign values to BUFFERPOOL, LOCKS, and TBLSPACES as well because the minimum values for these three parameters are based on the value of USERTHREADS.)