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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™.
High availability and scalabilityA successful production environment requires database systems that are always available, with minimal if any planned outages, and that can be scaled quickly and easily as business requirements change.
Cluster administration
Performing basic administration tasks
Manage the logical log

Manage the logical log

The size of the logical log must be the same on both database servers. You can add or drop a logical-log file with the onparams utility, as described in Manage logical-log files. HCL OneDB™ replicates this change on the secondary database server; however, the LOGFILES parameter on the secondary database server is not updated. After you issue the onparams command from the primary database server, therefore, you must manually change the LOGFILES parameter to the appropriate value on the secondary database server. Finally, for the change to take effect, you must perform a level-0 backup of the root dbspace on the primary database server.

If you add a logical-log file to the primary database server, this file is available for use and flagged F as soon as you perform the level-0 backup. The new logical-log file on the secondary database server is still flagged A. However, this condition does not prevent the secondary database server from writing to the file.

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