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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
Shared memoryThese topics describe the content of database server shared memory, the factors that determine the sizes of shared-memory areas, and how data moves into and out of shared memory.
Shared-memory useThe database server uses shared memory to enable virtual processors and utilities to share data and to provide a fast communications channel for local client applications that use IPC communication.
Action to take if SHMTOTAL is exceededWhen the database server requires more memory than SHMTOTAL allows, a transient condition occurs, perhaps caused by a burst of activity that exceeds the normal processing load.

Action to take if SHMTOTAL is exceeded

When the database server requires more memory than SHMTOTAL allows, a transient condition occurs, perhaps caused by a burst of activity that exceeds the normal processing load.

Only the operation that caused the database server to run out of memory temporarily fails. Other operations continue to be processed in a normal fashion.

If messages indicate on a regular basis that the database server requires more memory than SHMTOTAL allows, you have not configured the database server correctly. Lowering DS_TOTAL_MEMORY or the buffers value in the BUFFERPOOL configuration parameter is one possible solution; increasing the value of SHMTOTAL is another.