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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
Data storageThe database server uses physical units of storage to allocate disk space. It stores data in logical units. Unlike the logical units of storage whose size fluctuates, each of the physical units has a fixed or assigned size that is determined by the disk architecture.
SbspacesAn sbspace is a logical storage unit composed of one or more chunks that store smart large objects.
Storage characteristics of sbspacesAs the database server administrator, you can use the system default values for these storage characteristics, or you can specify them in the -Df tags when you create the sbspace with onspaces -c. You can change these sbspace characteristics with the onspaces -ch option.
Average smart-large-object sizeSmart large objects usually vary in length. You can provide an average size of your smart large objects to calculate space for an sbspace.

Average smart-large-object size

Smart large objects usually vary in length. You can provide an average size of your smart large objects to calculate space for an sbspace.

You specify the average size with the AVG_LO_SIZE tag of the onspaces -c -Df option.

To specify the size and location of the metadata area, specify the -Ms and -Mo flags in the onspaces command. If you do not use the -Ms flag, the database server uses the value of AVG_LO_SIZE to estimate the amount of space to allocate for the metadata area. For more information, see Size sbspace metadata.

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