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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.

Shared-memory use

The 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.

The following figure illustrates the shared-memory scheme.

This figure shows Virtual Processor A and Virtual Processor B using shared memory to share data. Both virtual processors have memory space for program text and private data and memory space that is not allocated. — Figure 1: How the database server uses shared memory

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