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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.
Skip inaccessible fragments

Skip inaccessible fragments

One benefit that fragmentation provides is the ability to skip table fragments that are unavailable during an I/O operation. For example, a query can proceed even when a fragment is located on a chunk that is currently down as a result of a disk failure. When this situation occurs, a disk failure affects only a portion of the data in the fragmented table. By contrast, tables that are not fragmented can become completely inaccessible if they are located on a disk that fails.

This function is controlled as follows:

By the database server administrator with the DATASKIP configuration parameter
By individual applications with the SET DATASKIP statement