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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Administrator's GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Fault tolerance
Using mirroring
Manage mirroringYou can use the onspaces utility to manage mirroring.
Start mirroring for unmirrored storage spacesYou can prepare mirroring for a dbspace, blobspace, or sbspace at any time. However, the mirroring does not start until you perform a level-0 backup.
Start mirroring for unmirrored dbspaces using ON-Monitor (UNIX)Use the ON-Monitor Dbspaces > Mirror option to start mirroring a dbspace.

Start mirroring for unmirrored dbspaces with ON-Monitor (UNIX)

Use the ON-Monitor Dbspaces > Mirror option to start mirroring a dbspace.

About this task

To select the dbspace that you want to mirror, move the cursor down the list to the correct dbspace and press CTRL-B. The Mirror option then displays a screen for each chunk in the dbspace. You can enter a mirror path name and offset in this screen.

After you enter information for each chunk, press ESC to exit the option. The database server recovers the new mirror chunks, meaning it copies data from the primary to the mirror chunk. If the chunk contains logical-log files, recovery is postponed until after you create a level-0 backup.