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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™.
Logging and log administration
Logical log
Log sbspaces and smart large objects
Smart-large-object log records

Smart-large-object log records

When you create a smart large object with the LOG option, the logical log creates a smart-blob log record. Smart-blob log records track changes to user data or metadata. When smart large objects are updated, only the modified portion of the sbpage is in the log record. User-data log records are created in the logical log only when logging is enabled for the smart large object.

Warning: Be careful about enabling logging for smart large objects that are updated frequently. This logging overhead might significantly slow down the database server.

For information about the log records for smart large objects, see the chapter on interpreting logical-log records in the HCL OneDB™ Administrator's Reference.