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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™.
Disk, memory, and process management
Manage disk spaceYou can use several utilities and tools to manage disk spaces and the data that the database server controls.
Monitor disk usage
Monitor simple large objects in a blobspace
Determine blobpage fullness with oncheck -pB

Determine blobpage fullness with oncheck -pB

The oncheck -pB command displays statistics that describe the average fullness of blobpages. If you find that the statistics for a significant number of simple large objects show a low percentage of fullness, the database server might benefit from changing the size of the blobpage in the blobspace.

Run oncheck -pB with either a database name or a table name as a parameter. The following example retrieves storage information for all simple large objects stored in the table sriram.catalog in the stores_demo database:

oncheck -pB stores_demo:sriram.catalog

For detailed information about interpreting the oncheck -pB output, see optimizing blobspace blobpage size in the chapter on table performance considerations in the HCL OneDB™ Performance Guide.