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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.
Virtual portion of shared memoryThe virtual portion of shared memory is expandable by the database server and can be paged out to disk by the operating system.
Components of the virtual portion of shared memoryThe virtual portion of shared memory stores a variety of data.
Shared-memory internal tablesThe database server shared memory contains seven internal tables that track shared-memory resources.
Dbspace tableThe dbspace table tracks storage spaces in the database server.

Dbspace table

The dbspace table tracks storage spaces in the database server.

The dbspace-table information includes the following information about each dbspace:

Dbspace number
Dbspace name and owner
Dbspace mirror status (mirrored or not)
Date and time that the dbspace was created

If the storage space is a blobspace, flags indicate the media where the blobspace is located: magnetic or removable. If the storage space is an sbspace, it contains internal tables that track metadata for smart large objects and large contiguous blocks of pages containing user data.

If the storage space is a blobspace, flags indicate the media where the blobspace is located: magnetic, removable, or optical media. If the storage space is an sbspace, it contains internal tables that track metadata for smart large objects and large contiguous blocks of pages containing user data.

For information about monitoring dbspaces, see Monitor disk usage.